ating to new speakers.
For more information: https://medium.com/@carspeakerland/a-guide-to-the-simple-way-difference-in-car-speakers-2-way-3-way-4-way-25e0bf215b00
Adding new speakers for your automobile could improve the sound quality dramatically. Some sound technicians say it is the number-one update you may make to improve the overall quality of your vehicle.
"They do not care how it sounds. Speakers are often form of continue on the list. Updating to new speakers offers you a much fuller sound."
There is a whole lot to pick from in regards to car speakers. (Photo from Eldon Lindsay)
"New speakers will make a greater fidelity and clarity of sound," states Robert Nevitt, proprietor of Audio Electronics at Indianapolis. "The audio is more different without distortion. People will not get bored listening to it."
Cook says customers need to pick the type of sound they enjoy. The very first thing Cook does having a customer is sit in the car together to talk about their personal taste.
"Everybody's ear is different," he states. "That which I believe sounds great, you might believe is dreadful. It is a fantastic idea to get outside and listen to everything you enjoy and do not like about doing it."
When you've discovered a sound you want, you are going to discover the sky's actually the limitation in regards to purchasing car speakers. There are scores of manufactures and models, sizes and power levels to select from.
Columbus Car Audio & Accessories offers three types of automobile speakers to pick from: complete array speakers, component speakers along with coaxial speakers.
• Total range speakers arrive with a tweeter to make to your high-pitched sounds along with a woofer for those lows. This option offers a number of different sizes.
• Unit speakers, nonetheless, include separate tweeters and woofers.
• Coaxial speakers arrive with a tweeter plus motorist.
When you've selected a type of automobile speaker, you are going to want to determine how many you desire. Cook states some cars arrive with as little as just two speakers, whereas bigger, luxury vehicles might have too many 32. He adds a normal sedan generally has four. What are The Speaker Sizes in My Car | Speaker Size for My Car
"It simply depends if you would like to replace all of these," Cook says. "I would advise doing all of four. If you are budget-minded, I'd begin with the ones at the front. That is where you are at. And you are likely to be at the automobile 100 percent of their moment."
Subwoofers are designed to reproduce low bass frequencies also may be included with new speakers or could be added separately to existing car speakers.
"Many speakers can not play down low in these frequencies such as a subwoofer may," Cook says.
Related Article
Wondering about speakers? Below are a few techniques to establish a home entertainment experience whatever your budget.
A speaker update might charge as little as $100 up to a few million dollars depending on the scope of job and type of speaker.
Cook states that the price of a subwoofer can operate as low as $37. Columbus Car Audio & Accessories sells a subewoofer bundle that includes an amplifier and a enclosure for about $ 299.
To get a set of automobile speakers, Columbus Car Audio & Accessories begin prices at $39, with an average price tag of about $70 for setup. Adding an anti-vibrator into a set of speakers prices an additional $25.
Nevitt, meanwhile, fees as little as $99 to get a set of "some good speakers." The price of one hour of installion, that is typically how long it takes to put in a set of speakers, is 67.
However, most customers spend far more.
"Paying a total amount of 800 to $1000 isn't from this world of possibility," Nevitt states. "A price somewhere in the center could be $400 or $500."
Cook says several vehicle speaker technicians began with DIY projects and adds there is nothing wrong with trying to set up car speakers all on your own. But you are going to want the correct tools for your job along with just a little understand. Installing speakers requires carrying out your car door.
See Also: https://www.scoop.it/t/how-to-choose-best-car-speakers-6x9-inch-6-5-inch-6x8-inch-4-inch
Choosing a professional to set up speakers ensures that the job is done correctly.
"If you do it yourself, then you might wind up breaking something. That is some thing we do everyday. I am not planning to inform you we will not violate something. But we will look after it if we perform. We all do so with being honest and up front with people."
If you are getting speakers set up, experts say to expect to place an appointment to the setup. …
EP output variables are to calculate outdoorAirEnergy?
Thank you very much!
Output variables on the Read EP Results component:[1] totalThermalEnergy=cooling+heating[2] thermalEnergyBalance=cooling (-)andheating (+)[3] cooling= Zone Ideal Loads Supply Air Total Cooling Energy [J](Hourly)=Zone Ideal Loads Supply Air Sensible Cooling Energy [J](Hourly)+ Zone Ideal Loads Supply Air Latent Cooling Energy [J](Hourly)[4] heating= Zone Ideal Loads Supply Air Total Heating Energy [J](Hourly)= Zone Ideal Loads Supply Air Sensible Heating Energy [J](Hourly) + Zone Ideal Loads Supply Air Latent Heating Energy [J](Hourly)[5] electricLight=Zone Lights Electric Energy [J](Hourly)[6] electricEquip=Electric Equipment Electric Energy [J](Hourly)[7] peopleGains=Zone People Total Heating Energy [J](Hourly)[8] totalSolarGain=Zone Windows Total Transmitted Solar Radiation Energy[9] infiltrationEnergy=Zone Infiltration Total Heat Gain Energy (+)andZone Infiltration Total Heat Loss Energy (-)[10] outdoorAirEnergy= ???[11] natVentEnergy=Zone Ventilation Total Heat Gain Energy (+)andZone Ventilation Total Heat Loss Energy (-)[12] operativeTemperature=Zone Operative Temperature[13] airTemperature=Zone Mean Air Temperature[14] meanRadTemperature=Zone Mean Radiant Temperature[15] relativeHumidity=Zone Air Relative Humidity[16] airFlowVolume=[infiltrationFlow] Zone Infiltration Standard Density Volume Flow Rate+[natVentFlow] Zone Ventilation Standard Density Volume Flow Rate+[mechSysAirFlow] Zone Mechanical Ventilation Standard Density Volume Flow Rate+[earthTubeFlow] Earth Tube Air Flow Volume[17] airHeatGainRate=[surfaceAirGain] Zone Air Heat Balance Surface Convection Rate+[systemAirGain] Zone Air Heat Balance System Air Transfer Rate
Output variables on the Read EP Surface Results component:[1] surfaceIndoorTemp= Surface Inside Face Temperature[2] surfaceOutdoorTemp=Surface Outside Face Temperature[3] surfaceEnergyFlow=[opaqueEnergyFlow] Surface Average Face Conduction Heat Transfer Energy+[glazEnergyFlow] Surface Window Heat Gain Energy[4] opaqueEnergyFlow =Surface Average Face Conduction Heat Transfer Energy[5] glazEnergyFlow= Surface Window Heat Gain Energy[6] windowTotalSolarEnergy=Surface Window Transmitted Solar Radiation Energy[7] windowBeamEnergy=Surface Window Transmitted Beam Solar Radiation Energy[8] windowDiffEnergy=Surface Window Transmitted Diffuse Solar Radiation Energy[9] windowTransmissivity=Surface Window System Solar Transmittance…
he "return" is comment out as shown below?
After restarting Rhino and Grasshopper, I opened the outdoors_airflow demo file, and the first step of creating the case file is ok:
Then the blockMesh component gives the following error: seems I have to manually start OF first..
so, as the error message suggested, I open OF by Start_OF.bat:
Then come back to the blockMesh component, now it can be executed while the OF command line window is also openning:
... and the blockMesh finished successfully:
... so I proceeded to run snappyHexMesh, checkMesh and update fvScheme:
... up to the simpleFoam component, I got the error again:
The warning message is:
1. Solution exception: --> OpenFOAM command Failed!#0 Foam::error::printStack(Foam::Ostream&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #1 Foam::sigFpe::sigHandler(int) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #2 ? in "/lib64/libc.so.6" #3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #4 Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #5 Foam::GAMGSolver::solveCoarsestLevel(Foam::Field<double>&, Foam::Field<double> const&) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #6 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #7 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #8 Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so" #9 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam" #10 Foam::fvMatrix<double>::solve() in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam" #11 ? in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam" #12 __libc_start_main in "/lib64/libc.so.6" #13 ? in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
... and the command lines in the readMe! output are pretty long and it is saved in the text file attached here.
So, my questions are:
1. why I have to manually start OF first before I can use the blockMesh component? Should butterfly automatically start OF?
2. what might be the cause of the unsuccessful run of simpleFoam in the end?
Hope you can kindly advise! Thank you!
- Ji
…
This blog post is a rough approximation of the lecture I gave at the AAG10 conference in Vienna on September 21st 2010. Naturally it will be quite a different experience as the medium is quite…
Added by David Rutten at 3:27pm on September 24, 2010
ow the steps of the successful run when step 1.2 is bypassed (note that the and OpenFOAM session is open in the background while running the Butterfly demo file):
1. create wind tunnel, and use different parameters of (4,4) for _globalRefLevel_ as suggested by Theodoro in this post
2. run blockMesh:
3. run snappyHexMesh:
4. run checkMesh:
5. connect the case from checkMesh to simpleFOAM and run the simulation:
6. the simulation converged at 1865 iteration, but the results visualization part has some problem:
7. so I revised this part according to suggestions from Hagit:
8. and the results can be visualized for P and U values:
The GH file used for the successful run shown above is attached here.
Now, the following is the error I got when the case from the update fvScheme component is used for simpleFOAM simulation:
the warning message on the simpleFOAM component is:
1. Solution exception: --> OpenFOAM command Failed!#0 Foam::error::printStack(Foam::Ostream&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #1 Foam::sigFpe::sigHandler(int) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #2 ? in "/lib64/libc.so.6" #3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #4 Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #5 Foam::GAMGSolver::solveCoarsestLevel(Foam::Field<double>&, Foam::Field<double> const&) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #6 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #7 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so" #8 Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so" #9 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam" #10 Foam::fvMatrix<double>::solve() in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam" #11 ? in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam" #12 __libc_start_main in "/lib64/libc.so.6" #13 ? in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/simpleFoam"
The error message from the readMe! output node is attached below as a text file.
Hope you can kindly advise what the important steps or parameters I might have missed here. I assume it might be related to OpenFOAM rather than with the Butterfly workflow...
Thank you very much!
- Ji
…
t. So here we go!
1. Honeybee is brown and not yellow [stupid!]...
As you probably remember Honeybee logo was initially yellow because of my ignorance about Honeybees. With the help of our Honeybee expert, Michalina, now the color is corrected. I promised her to update everyone about this. Below are photos of her working on the honeybee logo and the results of her study.
If you think I'm exaggerating by calling her a honeybee expert you better watch this video:
Thank you Michalina for the great work! :). I corrected the colors. No yellow anymore. The only yellow arrows represent sun rays and not the honeybee!
2. Yellow or brown, W[here]TH Honeybee is?
I know. It has been a long time after I posted the initial video and it is not fun at all to wait for a long time. Here is the good news. If you are following the Facebook page you probably now that the Daylighting components are almost ready.
Couple of friends from Grasshopper community and RADIANCE community has been helping me with testing/debugging the components. I still think/hope to release the daylighting components at some point in January before Ladybug gets one year old.
There have been multiple changes. I finally feel that the current version of Honeybee is simple enough for non-expert users to start running initial studies and flexible enough for advanced users to run advanced studies. I will post a video soon and walk you through different components.
I think I still need more time to modify the energy simulation components so they are not going to be part of the next release. Unfortunately, there are so many ways to set up and run a wrong energy simulation and I really don’t want to add one new GIGO app to the world of simulation. We already have enough of that. Moreover I’m still not quite happy with the workflow. Please bear with me for few more months and then we can all celebrate!
I recently tested the idea of connecting Grasshopper to OpenStudio by using OpenStudio API successfully. If nothing else, I really want to release the EnergyPlus components so I can concentrate on Grasshopper > OpenStudio development which I personally think is the best approach.
3. What about wind analysis?
I have been asked multiple times that if Ladybug will have a component for wind study. The short answer is YES! I have been working with EFRI-PULSE project during the last year to develop a free and open source web-based CFD simulation platform for outdoor analysis.
We had a very good progress so far and our rockstar Stefan recently presented the results of the work at the American Physical Society’s 66th annual DFD meeting and the results looks pretty convincing in comparison to measured data. Here is an image from the presentation. All the credits go to Stefan Gracik and EFRI-PULSE project.
The project will go live at some point next year and after that I will release the Butterfly which will let you prepare the model for the CFD simulation and send it to EFRI-PULSE project. I haven’t tried to run the simulations locally yet but I’m considering that as a further development. Here is how the component and the logo looks like right now.
4. Teaching resources
It has been almost 11 months from the first public release of Ladybug. I know that I didn't do a good job in providing enough tutorials/teaching materials and I know that I won’t be able to put something comprehensive together soon.
Fortunately, ladybug has been flying in multiple schools during the last year. Several design, engineering and consultant firms are using it and it has been thought in several workshops. As I checked with multiple of you, almost everyone told me that they will be happy to share their teaching materials; hence I started the teaching resources page. Please share your materials on the page. They can be in any format and any language. Thanks in advance!
I hope you enjoyed/are enjoying/will enjoy the longest night of the year. Happy Yalda!
Cheers,
-Mostapha
…
Crystallon is an open source project for creating lattice structures using Rhino and Grasshopper3D. The goal is to generate lattice structures within Rhino’s design environment without exporting t