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Applied Computational Fluid Dynamics Laboratory

The applied computational fluid dynamics (CFD) lab at the Mechanical Engineering Department was established to use CFD as an analysis tool to understand the transport phenomena (fluid dynamics, heat and mass transfer, chemical reactions and electromagnetic effects) in industrial processes and as a design tool to optimize engineering components and system design. Multiphysics modeling and simulations are carried out to study transport phenomena and thermally induced stress in various industrial processes and engineered systems, such as energy conversion, automobile aerodynamics, electronics cooling, HVAC(heating ventilation and air conditioning), welding, casting, etc.

Facilities

The simulation are based on in-house codes (using finite-volume method) and commercial codes (STAR-CCM+ and ANSYS), and mathematical modeling software tool (MatLab). CAD software Pro-Engineer (ProE) and STAR-Design are used for solid modeling. The high performance computing needs are served by the existing computing infrastructure at UB. The School of Engineering at UB has six computer laboratories, which house 135 high performance PCs/HP workstations and 25 Sun Microsystems stations. In addition, two 64-bit high performance HP workstations were acquired for the CFD lab through a UB Seed Money Grant.

Current projects

  • Modeling transport phenomena in welding processes
  • Thermal management of electronics devices and
  • Modeling transport phenomena in renewable energy system
  • Indoor air quality control
  • Automobile aerodynamics
  • Air and spacecraft aerodynamics
  • Sport related aerodynamics

  • H. Guo, J. Hu and H. L. Tsai, 鈥淭hree-Dimensional Modeling of Gas Metal Arc Welding of Aluminum Alloys鈥�, Journal of Manufacturing Science and Engineering, in print.
  • H. Guo, J. Hu and H. L. Tsai, 鈥淣umerical Modeling of Cold Weld Formation and Improvement in GMAW of Aluminum Alloys鈥�, Numerical Heat Transfer, Part A: Applications, 57 (2010) 392-414.
  • H. Guo, J. Hu and H. L. Tsai, 鈥淔ormation of weld crater in GMAW of aluminum alloys鈥�, International Journal of Heat and Mass Transfer, 52 (2009) 5533-5546.
  • G. Xu, J. Hu and H. L. Tsai, 鈥淭hree-dimensional modeling of arc plasma and metal transfer in gas metal arc welding鈥�, International Journal of Heat and Mass Transfer, 52 (2009) 1709-1724.
  • G. Xu, J. Hu and H. L. Tsai, 鈥淭hree-Dimensional Modeling of the Plasma Arc in Arc Welding鈥�, Journal of Applied Physics, 104, 103301 (2008).
  • J. Hu and H. L. Tsai, 鈥淢odeling of Transport Phenomena in 3D GMAW of Thick Metal with V-Groove鈥�, Journal of Physics D: Applied Physics, 41 (2008) 065202 (10pp).
  • J. Hu, H. Guo and H. L. Tsai, 鈥淲eld Pool Dynamics and the Formation of Ripples in 3D Gas Metal Arc Welding鈥�, International Journal of Heat and Mass Transfer 51 (2008), 2537-2552.
  • J. Hu and H. L. Tsai, 鈥淢etal Transfer and Arc Plasma in Gas Metal Arc Welding鈥�, ASME Journal of Heat Transfer, 129 (2007) 1025-1035.
  • J. Hu and H. L. Tsai, 鈥淗eat and Mass Transfer in Gas Metal Arc Welding, Part I: the Arc鈥�, International Journal of Heat and Mass Transfer, 50 (2007), 833-846.
  • J. Hu and H. L. Tsai, 鈥淗eat and Mass Transfer in Gas Metal Arc Welding, Part II: the Metal鈥�, International Journal of Heat and Mass Transfer, 50 (2007), 808-820.
  • J. Hu and H. L. Tsai, 鈥淓ffects of Welding Current on Droplet Generation and Arc Plasma in Gas Metal Arc Welding鈥�, Journal of Applied Physics, 100, 053304 (2006).
  • J. Yin, C. Zheng, L. Zhou, J. Hu, 鈥淣umerical Simulation of NOx Formation with a Second-Order-Moment-PDFTurbulence-Chemistry Model鈥�, Journal of Combustion Science and Technology, Vol. 7, No. 1, 2001.
  • H. Zeng, J. Zhou, T. Xu, J. Hu, H. Yao, 鈥淪taged Combustion and Staged Desulphurization鈥�, Clean Coal Combustion & Power Generation Technology, No. 2, Sept., 1998.
  • Z. Zhang, J. Hu, H. Zeng, etc, 鈥淪tudies on Experiments of Using Solid-Sorbent to Control Heavy Metal During Coal Combustion鈥�, Journal of Fuel Chemistry and Technology, Vol. 26, No. 6, Dec., 1998.

  • Z.H. Rao, J. Hu, S.M. Liao and H. L. Tsai, 鈥淪tudy the shielding gas effect on the metal transfer and weld pool dynamics in GMAW鈥�, 2009 ASME Summer Heat Transfer Conference, San Francisco, California, July 19-23, 2009.
  • Z.H. Rao, J. Hu, S.M. Liao and H. L. Tsai, 鈥淪tudy the shielding gas effects on transport phenomena in GMAW arc鈥�, 20th International Symposium on Transport Phenomena (ISTP20), Victoria, British Columbia, Canada, July 7-10, 2009.
  • K. Ren, J. Hu, X. Xiong, L. Zhang and J. Wei, 鈥淰alidation of Turbulence Models in STAR-CCM+ by N.A.C.A. 23012 Airfoil Characteristics鈥�, 2009 ASEE Northeast Section Conference, 51黑料网, April 3-4, 2009.
  • L. Zhang, X. Xiong and J. Hu, 鈥淒eveloping a New Graduate Program in Sustainable Energy Engineering鈥�, 2009 ASEENortheast Section Conference, 51黑料网, April 3-4, 2009.
  • Z.H. Rao, J. Hu, S.M. Liao and H. L. Tsai, 鈥淒etermination of Equilibrium Wire Feed Speeds for a Stable GMAW Process鈥�,ASME-IMECE, Boston, MA, October 31-November 6, 2008.
  • G. Xu, J. Hu and H. L. Tsai, 鈥淢odeling of Arc Plasma and Metal Transfer in 3D Gas Metal Arc Welding鈥�, 19th International Symposium on Transport Phenomena (ISTP19), Reykjavik, Iceland, August 17-21, 2008.
  • J. Hu, L. Zhang and X. Xiong, 鈥淭eaching Computational Fluid Dynamics (CFD) to Design Engineers鈥�, 2008 ASEE Annual Conference & Exposition, Pittsburgh, PA, June 22-25, 2008.
  • J. Hu and H. L. Tsai, 鈥淢odeling Three-Dimensional Gas Metal Arc Welding with Groove鈥�, ASME-IMECE, Seattle, Washington, 2007.
  • J. Hu, H. Guo and H. L. Tsai, 鈥淲eld Pool Dynamics and the Formation of Ripples in 3D Gas Metal Arc Welding鈥�, ASME-IMECE, Seattle, Washington, 2007.
  • J. Hu, H. L. Tsai and P. C. Wang, 鈥淓ffects of Welding Current on Metal Transfer and Weld Pool Dynamics in Gas Metal Arc Welding鈥�, ASME-IMECE, Chicago, Illinois, 2006.
  • J. Hu, H. Guo, G. Xu and H. L. Tsai, 鈥淎 Comprehensive 3-D Model on Gas Metal Arc Welding鈥�, International Symposium on Computer-Aided Welding Engineering, Jinan, Shandong, China, 2006.
  • J. Hu, H. L. Tsai, 鈥淣umerical Modeling of Welding Current Effects in Gas Metal Arc Welding鈥�, 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, San Francisco, California, 2006.
  •  J. Hu, H. L. Tsai and P. C. Wang, 鈥淢odeling of Transport Phenomena in Gas Metal Arc Welding鈥�, 4th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT), Cairo, Egypt, 2005.
  • J. Hu and H. L. Tsai, 鈥淔luid Flow and Weld Pool Dynamics in Dual-Beam Laser Keyhole Welding鈥�, ASME-IMECE, Washington, D.C., 2003.
  • J. Hu, H. L. Tsai, and Y. K. Lee, 鈥淢odeling of Weld Pool Dynamics During Dual-Beam Laser Welding Process鈥�, ICALEO, Jacksonville, Florida, 2003.
  • J. Hu and H. L. Tsai, 鈥淢odeling the Transport Phenomena during Dual Beam Laser Welding Process鈥�, CLEO/Europe, Munich, Germany, 2003.

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