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NEXTfoam
South Korea
เข้าร่วมเมื่อ 21 ต.ค. 2013
넥스트폼
Rubber duck
#cfd #openfoam #baram #cae #fluid #water #duck #rubberduck #rubber #river #lake #simulation
มุมมอง: 134
วีดีโอ
compressible cavity flow
มุมมอง 22121 วันที่ผ่านมา
Cavity flow, Mach = 0.6 #cfd #openfoam #baram #cae #compressible #flow #fluid #cavity #cavitation #particle #particles
species transport
มุมมอง 318หลายเดือนก่อน
#cfd #openfoam #baram #species #speciestransport #cae #fluid #combustion #engineering #engine
naturalConvection 4
มุมมอง 158หลายเดือนก่อน
#convection #heat #heattransfer #cfd #cae #openfoam #baram #simulation #fluid
Weir LES Simulation
มุมมอง 4042 หลายเดือนก่อน
Have you ever tried LES simulation with weir? We tried it with our CFD software BARAM. #openfoam #baram #cfd #weir #les #simulation
Difference between LES vs RANS
มุมมอง 2063 หลายเดือนก่อน
NEXTFOAM release the newest BARAM. It's BARAM v24.2.0 Now, you can calculate LES, DES model and also User-defined Scalar model!! You can see more detail information at here ↓↓↓↓ baramcfd.org/ #cfd #cae #openfoam #baram #LES #DES #Fluid #fluiddynamics #scalar
Flow comparison according to viscosity
มุมมอง 3144 หลายเดือนก่อน
Hi!! We compared to the flow according to the viscosity of fluid. We compared to the viscosity 0.01, 0.1, 1 and 10. Can you see the difference between the various viscosity? #openfoam #baram #nextfoam #cfd #viscosity #fluid #오픈폼
Launch NEXTFOAM BARAM on Azure
มุมมอง 1524 หลายเดือนก่อน
Launch the Azure virtual machine that NEXTFOAM BARAM cfd package is pre-installed, and connect to the virtual machine with X2Go client.
Rising Fastball CFD
มุมมอง 2335 หลายเดือนก่อน
Have you ever heard about Magnus effect? As you can see in the video, the pressure distribution on the top and the bottom of the baseball is different. And it makes lift force to the bottom from the top. So the ball is lifted. And if the ball rotates faster, the ball is lifted more!! If you're a major league baseball player, make the ball rotates faster. @nextfoam4326 marketing@nextfoam.co.kr /...
Tesla Valve CFD Simulation with BARAM
มุมมอง 8636 หลายเดือนก่อน
#cfd #openfoam #baram #cae #fluid #water #teslavalve #shorts #넥스트폼 #nextfoam Have you ever heard about Tesla Valve? It is known to prevent the reverse flow inside the pipe. We conducted the simulation to validate wheter this was true.
Water Maze
มุมมอง 13K7 หลายเดือนก่อน
#cfd #openfoam #넥스트폼 #baram #cae #fluid #water #watermaze #shorts If you're trapped in the maze, solve it with water!!! It works very well.
OpenFOAM 기본 강의-12강 (snappyHexMesh Tutorial)
มุมมอง 4417 หลายเดือนก่อน
#오픈폼 #openfoam #cfd #넥스트폼 #강의영상 OpenFOAM 기본 강의 12강 snappyHexMesh 튜토리얼입니다. bgm 출처: th-cam.com/video/Sail0squu4Y/w-d-xo.htmlfeature=shared 본 영상에는 클로바더빙(CLOVA Dubbing)의 AI 보이스가 사용되었습니다. #클로바더빙 #엄마사랑해 바로 가기 URL: clovadubbing.naver.com
OpenFOAM 기본 강의-11강 (blockMesh Tutorial)
มุมมอง 3617 หลายเดือนก่อน
#오픈폼 #openfoam #cfd #넥스트폼 #강의영상 OpenFOAM 기본 강의 11강 blockMesh 튜토리얼입니다. bgm 출처: th-cam.com/video/Sail0squu4Y/w-d-xo.htmlfeature=shared 본 영상에는 클로바더빙(CLOVA Dubbing)의 AI 보이스가 사용되었습니다. #클로바더빙 #엄마사랑해 바로 가기 URL: clovadubbing.naver.com 관련 링크 : www.openfoam.com/documentation/user-guide/4-mesh-generation-and-conversion/4.3-mesh-generation-with-the-blockmesh-utility#x13-410004.3
OpenFOAM 기본 강의-10강 (Paraview Tutorial)
มุมมอง 4097 หลายเดือนก่อน
OpenFOAM 기본 강의-10강 (Paraview Tutorial)
OpenFOAM 기본 강의-6강 (OpenFoam solver 소개)
มุมมอง 1858 หลายเดือนก่อน
OpenFOAM 기본 강의-6강 (OpenFoam solver 소개)
OpenFOAM 기본 강의-6강 (OpenFoam solver 소개)
มุมมอง 4108 หลายเดือนก่อน
OpenFOAM 기본 강의-6강 (OpenFoam solver 소개)
[BARAM v23] Atmosphere Boundary Layer CFD
มุมมอง 35810 หลายเดือนก่อน
[BARAM v23] Atmosphere Boundary Layer CFD
[BARAM v23] Mixing Pipe Mesh Generate
มุมมอง 97710 หลายเดือนก่อน
[BARAM v23] Mixing Pipe Mesh Generate
[BARAM v23] CHT CFD (Conjugate Heat Transfer)
มุมมอง 22010 หลายเดือนก่อน
[BARAM v23] CHT CFD (Conjugate Heat Transfer)
Is this in baramflow? How did you make the surface ahead of the duck wavey?
Thanks for watching our video!! Yes we did it in baramFlow There is no special trick. Slightly faster speed and lots of mesh. The input velocity is 15m/s and the number of mesh is around 6.5M cells.
Look at the cute little rubber duck swimming!! How cute!!!
환경변수 설정 파일경로를 복사하지 못하고 컴퓨터가 꺼졌는데 어떻게 알아낼 수 있나요...
환경변수 경로는 아래와 같습니다. /home/유저이름/apps/OpenFOAM-v2212/etc/bashrc 여기서 유저이름은 해당 계정명으로 바꿔서 사용해주시면 되겠습니다.😀😀
Of12?
Hello. This is NEXTFOAM. We solved this problem with BARAM v24.3.0 You can see more information with BARAM in this link : baramcfd.org/ We're developing and releasing BARAM which is based on OF-esi with GUI. Thank you for watching this video. 😄😄😄
I have to go back to my Korean classes :D
@@SaulousHR We'll provide the manual with English very soon. So please wait until then. Thanks
I'm using it on Windows, I'll try it. I tried to compile it on Ubuntu 22 but I did it all wrong, I messed it up :/
@@SaulousHR Yeah. We recommend the users to use it on Windows. It's very easy and simple to install on Windows!!!😀😀
tl;dr yeah, kinda
저도 이것을 따라서 해보고 싶어요. 혹시 코드나 설명 영상을 받을 수 있을까요?
안녕하세요 넥스트폼입니다. 이메일 주소 알려주시면 BARAM case 파일을 보내드리겠습니다!!
🎉🎉🎉😎😎🆒
NEXTFOAM release the newest BARAM. It's BARAM v24.2.0 Now, you can calculate LES, DES model and also User-defined Scalar model!! You can see more detail information at here ↓↓↓↓ baramcfd.org/ #cfd #cae #openfoam #baram #LES #DES #Fluid #fluiddynamics #scalar
excellent!! Is there any example or tutorial of above viscosity cases ?
Thank you for watching our video. We can provide the example with the video. Could you let me know your email address?
❤
Thank you for watching our video!!!!
안녕하세요. 따라하고 있는데 colour에 u P 등이 안나오는데 무엇이 문제일까요?
안녕하세요. 넥스트폼입니다. 혹시 Properties 탭에서 case type을 변경하셨을까요?
@@nextfoam4326 Case Type은 기본적으로 Reconstructed Case로 되어있었습니다. Paraview가 켜질때부터 Mesh Regions에 Motor Bike~로 된 항목들이 나타나지 않습니다 ㅠㅠ
@@h3cu257 혹시 paraview 실행 전에 touch post.foam 해보셨을까요? 지금 현상은 paraview가 실행은 됐는데, post파일을 읽지 못해 발생하는 현상으로 보입니다. 이 부분을 확인해야할 것 같습니다.
@@nextfoam4326 touch post.foam 했는데 동일하게 표시되지않네요. 저 같은 경우는 시뮬레이션 실행했을때 5초도 안걸려서 바로 Allrun이 완료 된것처럼 나왔습니다. 해당 내용은 동일한가요?
@@h3cu257 그러면 log 파일에 에러를 확인해야할 것 같습니다. 아래 순서대로 따라해주시면 감사하겠습니다. 1) ls 명령어를 입력하여 생성되는 log.XXX 파일들이 정상적으로 생성되었는지 확인해주시면 되겠습니다. 2) log.simpleFoam이 생성되어 있으면, vi log.simpleFoam 명령어를 입력해 log 파일에 어떤 내용이 적혀있는지 알려주시면 감사하겠습니다. 3) 만약 그렇지 않을 경우, 생성된 로그 파일들을 알려주시면 감사하겠습니다.
Thanks for your lectures on OpenFoam.
Thank you for your interest in our videos.
0:46 Linus Torvalds seems to be so scary.
paraFoam이 열리지 않을 때(Ubuntu 22.04)의 경우, paraFoam 대신 ParaView_GL="" paraFoam 으로 진입가능합니다.
The Tesla Valve Tesla’s valvular conduit is mostly misunderstood as presented in much of literature and most media such as TH-cam in recent years. This device cannot be called a valve if used as an inline flow resistor. It is usually but erroneously demonstrated as a ‘one way valve’ with fluid, be it gas or liquid where the pressure drop is considerably larger in one direction flow than in the opposite. To use electrical analogy, this is not a diode but a resistor, therefore, the word valve is inappropriate. The expected ‘valve’ action (check or non-return valve) is unimpressive if anything. Tesla originally construed his ‘valvular conduit for gas flow, and in fact specifically for gas under pulsating pressure. In this application, it may be called a ‘valve’ or a ‘fluid diode’. Gas under hight frequency pulsating pressure takes advantage of this clever topology and is free to flow in one direction with relatively negligible losses and practically no backflow. With careful design, Tesla’s valvular conduit is a true pulsating gas diode with no moving parts. An illustrative application would be an IC engine exhaust manifold. It should also be noted that this valve will have optimal performance at a single design point, i.e., temperature, fluid type, volumetric flow and frequency, so that any change of a parameter will have it operating off optimum. As for making a modern design, I imagine a cut and try method with FEA would be used. I came across only one YT video where the guy understood the Tesla valve. th-cam.com/video/SQAlM5Nyu9Q/w-d-xo.html
Hello, I am interested in preparing a mesh object to run simulation for buildings... but seems to be really hard with Baram mesh..any suggestions. Thank you in advance!
Hi @LucianoAmbrosini Thank you for your attention in BARAM. We don't support the BARAM v5.0 now. So we recommend you to use BARAM v24. And could you tell us the difficulties what you have now? It will be very helpful to us for giving you suggestion. Thanks.
안녕하세요. 아래 사람과 같이 저도 같은 오류를 겪었습니다. gedit ~/.bashrc를 입력하였는데 다음과 같은 오류가 발생했습니다. (gedit:17680): Gtk-WARNING **: 19:30:04.604: cannot open display: 그래서 eho $DISPLAY를 쳤는데, callm@BOOK-37DNMI0814:~$ eho$DISPLAY Command 'eho' not found, did you mean: command 'who' from deb coreutils (8.32-4.1ubuntu1) command 'echo' from deb coreutils (8.32-4.1ubuntu1) Try: sudo apt install <deb name> 라고 떴습니다.. 어떻게 해야할까요?ㅠㅠ
안녕하세요 넥스트폼입니다. 우선 명령어가 echo $DISPLAY로 치셔야하는데, 오타가 있으시네요. 해당 문제는 powershell에서 wsl을 업데이트 해주시는 것으로 해결될 수 있습니다. powershell에서 아래 명령어를 입력해주시면 되겠습니다. wsl --update 감사합니다.
많은 도움이 되었습니다ㅜㅜ 감사합니다!
안녕하세요, 2:58에서 'gedit'이라는 명령어를 입력하니, Command 'gedit' not found, but can be installed with: sudo apt install gedit 라는 내용이나와서, sudo apt install gedit 을 붙여넣기 하였고, 이후 Do you want to continue? [Y/n] 가 나와서 y를 눌렀습니다. y이후 다음과 같이 ~$ gedit ~/.bashrc Unable to init server: Could not connect: Connection refused (gedit:3682): Gtk-WARNING **: 15:42:49.107: cannot open display: 이렇게 나오는데 어떻게 해야하나요?
안녕하세요 넥스트폼입니다. 아마 WSL 환경에 무언가 문제가 생긴 것으로 보입니다. 혹시 eho $DISPLAY를 실행해서 DISPLAY 포트 번호가 무엇인지 알려주실 수 있으신가요? 이후에 :0이 나오지 않는다면 dkkim@nextfoam.co.kr로 메일 보내주시면 감사하겠습니다.
Hello, will you make the tutorial to visualize it?
I'm sorry. But we don't have the plan to make the tutorial how to visualize yet. We are considering the videos how to visualize and post-process. Thank you for having attention.
누나 도메인 안에서 움직이는 메쉬 튜토리얼도 알려주시믄 안되나용? ㅎㅎ
안녕하세요 넥스트폼입니다. 혹시 Dynamic Mesh, Sliding Mesh, Overset Mesh등의 튜토리얼을 말씀하시는걸까요? 죄송하지만 현재 교육 영상 업로드 계획에는 Dynamic Mesh 튜토리얼 실습은 포함되어 있지 않습니다. 아마 Dynamic Mesh 튜토리얼 소개는 간단하게 해드릴 수 있을 것 같긴한데, 필요하시다면 저희 회사로 문의주시면 감사하겠습니다.
좋은 강의 감사합니다. 3:26에서 simpleFoam을 입력했을 때 simpleFoam: error while loading shared libraries: libfiniteVolume.so: cannot open shared object file: No such file or directory 다음과 같은 에러가 뜨면 어떻게 해야 하나요?
안녕하세요 넥스트폼입니다. 실행 파일 경로는 제대로 찾는데 라이브러리 경로를 못 찾는것으로 보입니다. 혹시 다음 명령어를 입력하여 나오는 결과물을 알려주실 수 있으신가요? echo $LD_LIBRARY_PATH
/home/opuntia/OpenFOAM/opuntia-v2312/platforms/linux64GccDPInt32Opt/lib:apps/OpenFOAM-v2312/site/2312/platforms/linux64GccDPInt32Opt/lib:apps/OpenFOAM-v2312/../ThirdParty/platforms/linux64Gcc/ParaView-5.9.1/lib64 가 나옵니다.(opuntia는 ID입니다.)@@nextfoam4326
안녕하세요. 넥스트폼입니다. 답이 늦어 죄송합니다. LD_LIBRARY_PATH를 못 잡은것으로 보입니다. 괜찮으시다면 보다 자세한 내용 파악을 위해 아래 메일 주소로 연락주실 수 있으신가요? marketing@nextfoam.co.kr
@@nextfoam4326 문제는 스스로 해결했습니다. 친절한 답변 감사드립니다👍
gedit으로 test파일 열 때 수정할려니 gedit창이 그래픽 깨지듯이 깨져서 텍스트가 안보여요. 해결방법이 있을까요?
감사합니다 ~
감사합니다!! 앞으로도 많은 관심 부탁드립니다!!
잘봤습니다!
감사합니다!! 앞으로도 많은 시청 바랍니다!!
정말 감사합니다 설치가 힘들었었는데 !!
혹시나 OpenFOAM을 쓰시다가 어려운 점이 있으시다면 언제든지 댓글 남겨주세요 😍 😍 😍
누나 나중에 '설치풀더/application' 에 새로운 실행파일 추가해서 run 하는것도 보여주세영~
감사합니당
교육 영상을 시청해주셔서 정말 감사합니다!!
Thank you for this Introduction 🙂
감사합니다.
Amazing! How did you import the results into paraview?
drive.google.com/file/d/1omjUJlEZZT4wqf9asYvv8b49pp8EsTl_/view?usp=sharing
바람 윈도우 10에서 실행 가능한가요? 저번에 설치가 안 됬던 거 같아서요...😊
NEXTFOAM에서 개발한 BARAM AWS Cloud workstation launcher입니다. 사용자가 BARAM 설치 없이 Ubuntu Linux를 기반으로 한 BARAM을 실행할 수 있습니다. 이러한 클라우드 서비스는 하드웨어 제약없이 쉽고 빠른 CFD를 가능하게 합니다. 다음 서비스로는 현재 Multi Node, Multi Cloud, general on-prem HPC with scheduler 등을 기획하고 있습니다. This is the BARAM AWS Cloud workstation launcher that was developed by NEXTFOAM. Users Can launch the Ubuntu Linux based BARAM workstation without installing BARAM, OpenFOAM and Linux in the local desktop. This is the first step for the easy and fast CFD simulation without the limitation of the hardware. Next step will be the support support for the multi cloud, multi nodes HPC and the general on-prem HPC with scheduler.
감사합니다. 그런데 블록 설정할 때 시계 방향이 아니라 반시계 방향 아닌가요..?
It worked on ubuntu 20 but unfortunately Openfoam6 is not available for Ubuntu 21. I'm getting an error: Traceback (most recent call last): File "./BARAM-v6/Baram.py", line 126, in <module> win=startWindow() File "./BARAM-v6/Baram.py", line 90, in __init__ logo.set_from_file(splashFile) UnboundLocalError: local variable 'splashFile' referenced before assignment
mixerVessel2D 에 makeMesh가 없어요 ㅠ
감사합니다!
강의 너무 잘듣고 있습니다. 처음시작하고있는데 많은 도움이 됩니다! 이번강의를 듣다가 myIcoFoam을 만든 후 wmake를 할 때 아래와 같은 에러가 생깁니다. "make: *** No rule to make target 'Make/linux64GccDPInt32Opt/myIcoFoam.C.dep', needed by 'Make/linux64GccDPInt32Opt/myIcoFoam.o'. Stop." 해당부분은 어떻게 해결해야되는지 모르겠네요 ㅠㅠ
활용법에 대한 자세한 설명 감사합니다! 슬라이스부터 시작되는 부분은 모르던 부분인데 잘 알고 가네요~~
Your ISO surfaces are very useful! How could I export each surface as a png or jpg image?
Thank you very much! Very useful
if you provided English subtitles, it would be very helpful :)
구독~
잘 봤습니다. 혹시 강의 요청도 받으시나요?