This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Under-hood Thermal Simulation of a Class 8 Truck
Technical Paper
2007-01-4280
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A validation study was performed comparing the simulation results of the Lattice-Boltzmann Equation (LBE) based flow solver, PowerFLOW®, to cooling cell measurements conducted at Volvo Trucks North America (VTNA). The experimental conditions were reproduced in the simulations including dynamometer cell geometry, fully detailed under-hood, and external tractor geometry. Interactions between the air flow and heat exchangers were modeled through a coupled simulation with the 1D-tool, PowerCOOL™, to solve for engine coolant and charge air temperatures. Predicted temperatures at the entry and exit plane of the radiator and charge-air-cooler were compared to thermocouple measurements. In addition, a detailed flow analysis was performed to highlight regions of fan shroud loss and cooling airflow recirculation. This information was then used to improve cooling performance in a knowledge-based incremental design process.
Recommended Content
Authors
Citation
Lafferty, C., Alajbegovic, A., and Horrigan, K., "Under-hood Thermal Simulation of a Class 8 Truck," SAE Technical Paper 2007-01-4280, 2007, https://doi.org/10.4271/2007-01-4280.Also In
References
- Nobel T.P. Jain S.K. “Improving Truck Underhood Thermal Management Through CFD,” SAE 2002-01-1027 Detroit, MI 2002
- Siqueira, C. de la R. Vatavuk P. Jokuszies M. Lima M. R. “Numerical Simulation of a Truck Underhood Flow,” SAE 2002-01-3453 Sao Paulo, Brazil 2002
- Andra R. Hytopoulos E. Kumar K. Sun R. “The Effect of Boundary and Geometry Simplification on the Numerical Simulation of Front-End Cooling,” SAE 980395 Detroit, MI 1998
- Knaus H. Ottosson C. Brotz F. Kuhnel W. “Cooling Module Performance Investigation by Means of Underhood Simulation,” SAE 2005-01-2013 Toronto, Canada 2005
- Fortunato F. Damiano F. Di Matteo L. Oliva P. “Underhood Cooling simulation for the Development of New Vehicles,” SAE 2005-01-2046 Toronto, Canada 2005
- Ding W. Williams J. Karanth D. Sovani S. “CFD Application in Automotive Front-End Design,” SAE 2006-01-0337 SAE Detroit, MI 2006
- Alajbegovic A. Sengupta R. Jansen W. “Cooling Airflow Simulation for Passenger Cars using Detailed Underhood Geometry,” SAE 2006-01-3478 Chicago, IL 2006
- Alajbegovic A. Xu B. Konstantinov A. Amodeo J. Jansen W. “Simulation of Cooling Airflow under Different Driving Conditions,” SAE 2007-01-0766 Detroit, MI 2007
- Frisch U. Hasslacher B. Pomeneau Y. “Lattice gas automata for the Navier-Stokes equation,” Physical Review Letters 56 1505 1508 1986
- Chen S. Doolen G. D. “Lattice Boltzmann method for fluid flows,” Annual Review of Fluid Mechanics 30 329 364 1998
- Succi S. The Lattice Boltzmann Equation for Fluid Dynamics and Beyond Series Numerical Mathematics and Scientific Computation Clarendon Press Oxford 2001
- Yakhot V. Orszag, S.A. “Renormalization Group Analysis of Turbulence. I. Basic Theory” J. Sci. Comput. 1 2 3 51 1986
- Yakhot V. Orszag S.A. Thangam S. Gatski T. Speziale C. “Development of turbulence models for shear flows by a double expansion technique,” Phys. Fluids A 4 7 1510 1520 1992
- Chen H. Orzag S.A. Staroselsky I. Succi S. “Expanded Analogy between Boltzmann Kinetic Theory of Fluid and Turbulence,” J. Fluid Mech. 519 307 314 2004
- Chen H. Teixeira C. Molvig K. “Realization of fluid boundary conditions via discrete Boltzmann dynamics,” Int. J. Mod. Phys.C 9 1281 1292 1998
- Chen H. Zhang R. “”Lattice Boltzmann method for simulations of liquid-vapor thermal flows,” Phys. Rev. E 67 6 2003
- Teixeria C. M. “Incorporating turbulence models into the lattice-Boltzmann method,” Int. J. Modern Physics C 9 8 1159 1175 1998
- PowerFLOW User's Guide, Release 4.0 Exa Corporation Boston, MA 2006
- Freed D.M. “Lattice Boltzman method ofr for macroscopic porous media modeling,” Int. J. Modern Physics C 9 8 1491 1504 1998
- PowerCOOL User's Guide, Release 4.0 Exa Corporation Boston, MA 2006
- ANSA User's Guide, Version 12.0.3 Beta CAE System S.A. Greece 2005
- PowerWRAP User's Guide, Release 4.0 Exa Corporation Boston, MA 2006
- Technical Regulation, Cooling Performance for North America Applications Test Requirements
- Willams J. Karanth D. Oler W. “Cooling Inlet Aerodynamic Performance and System Resistance,” SAE 2002-01-0256 Detroit, MI 2002