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Lennart Lo¨fdahl
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Proceedings Papers

Fan Modeling in CFD Using MRF Model for Under Hood Purposes

Peter Gullberg, Lennart Lo¨fdahl, Peter Nilsson
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 931-942, July 24–29, 2011
Paper No: AJK2011-23020
DOI: https://doi.org/10.1115/AJK2011-23020
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Topics: Computational fluid dynamics, Modeling, Air flow, Design, Cooling, Engineers, Blades, Engines, Fuels, Heat exchangers
Proceedings Papers

Investigation of Aerodynamic Wheel Designs on a Passenger Car at Different Cooling Air Flow Conditions

Christoffer Landstro¨m, Lennart Lo¨fdahl
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 985-994, July 24–29, 2011
Paper No: AJK2011-23028
DOI: https://doi.org/10.1115/AJK2011-23028
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Topics: Air flow, Automobiles, Cooling, Wheels, Drag (Fluid dynamics), Flow (Dynamics), Drag reduction, Vehicles, Aerodynamics, Computer simulation
Proceedings Papers

Investigation of the Cooling and Underbody Flow Field on a Detailed Model Scale Passenger Car: Part 1—Cooling Flows and Reynolds Number Effects

Lasse M. Christoffersen, Christoffer Landstro¨m, Lennart Lo¨fdahl
Proc. ASME. FEDSM2009, Volume 2: Fora, 297-304, August 2–6, 2009
Paper No: FEDSM2009-78515
DOI: https://doi.org/10.1115/FEDSM2009-78515
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Topics: Automobiles, Cooling, Flow (Dynamics), Reynolds number, Engines, Pressure measurement, Stress, Testing, Wheels, Wind tunnels
Proceedings Papers

Investigation of the Cooling and Underbody Flow Field on a Detailed Scale Model Passenger Car: Part 2—Effect of Ground Simulation

Christoffer Landstro¨m, Lasse Christoffersen, Lennart Lo¨fdahl
Proc. ASME. FEDSM2009, Volume 2: Fora, 305-312, August 2–6, 2009
Paper No: FEDSM2009-78516
DOI: https://doi.org/10.1115/FEDSM2009-78516
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Topics: Automobiles, Cooling, Flow (Dynamics), Simulation, Reynolds number, Drag (Fluid dynamics), Wind tunnels, Aerodynamics, Air flow, Fuel consumption
Proceedings Papers

An Investigation of the Aerodynamic Drag Mechanisms Due to Ground Simulation in Yawed Flow Conditions for Heavy Trucks

David So¨derblom, Lennart Lo¨fdahl, Per Elofsson, Linus Hjelm
Proc. ASME. FEDSM2009, Volume 2: Fora, 313-319, August 2–6, 2009
Paper No: FEDSM2009-78519
DOI: https://doi.org/10.1115/FEDSM2009-78519
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Topics: Drag (Fluid dynamics), Flow (Dynamics), Simulation, Trucks, Wheels, Automobiles, Geometry, Vehicles, Yaw, Aerodynamics
Proceedings Papers

Numerical Validations of Secondary Flows and Loss Development Downstream of a Highly Loaded Low Pressure Turbine Outlet Guide Vane Cascade

Johan Hja¨rne, Valery Chernoray, Jonas Larsson, Lennart Lo¨fdahl
Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 723-733, May 14–17, 2007
Paper No: GT2007-27712
DOI: https://doi.org/10.1115/GT2007-27712
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Guide vanes, Pressure, Turbines, Computer simulation, Turbulence, Boundary layers, Design, Engines
Proceedings Papers

Design of a Modern Test-Facility for LPT/OGV Flows

Johan Hja¨rne, Jonas Larsson, Lennart Lo¨fdahl
Proc. ASME. GT2003, Volume 6: Turbo Expo 2003, Parts A and B, 137-145, June 16–19, 2003
Paper No: GT2003-38083
DOI: https://doi.org/10.1115/GT2003-38083
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Topics: Design, Flow (Dynamics), Test facilities, Computational fluid dynamics, Analytical methods, Boundary layers, Design methodology, Diffusers, Guide vanes, Pressure
Proceedings Papers

Experimental Evaluation of the Flow-Field in a State of the Art Linear Cascade With Boundary-Layer Suction

Johan Hja¨rne, Valery Chernoray, Jonas Larsson, Lennart Lo¨fdahl
Proc. ASME. GT2005, Volume 6: Turbo Expo 2005, Parts A and B, 553-560, June 6–9, 2005
Paper No: GT2005-68399
DOI: https://doi.org/10.1115/GT2005-68399
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Topics: Boundary layers, Cascades (Fluid dynamics), Flow (Dynamics), Guide vanes, Pressure, Suction, Turbines
Proceedings Papers

Performance and Off-Design Characteristics for Low Pressure Turbine Outlet Guide Vanes: Measurements and Calculations

Johan Hja¨rne, Jonas Larsson, Lennart Lo¨fdahl
Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 649-658, May 8–11, 2006
Paper No: GT2006-90550
DOI: https://doi.org/10.1115/GT2006-90550
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Topics: Design, Guide vanes, Pressure, Turbines, Simulation, Cascades (Fluid dynamics), Computer simulation, Performance characterization, Turbulence
Proceedings Papers

An Experimental Investigation of Secondary Flows and Loss Development Downstream of a Highly Loaded Low Pressure Turbine Outlet Guide Vane Cascade

Johan Hja¨rne, Valery Chernoray, Jonas Larsson, Lennart Lo¨fdahl
Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 681-690, May 8–11, 2006
Paper No: GT2006-90561
DOI: https://doi.org/10.1115/GT2006-90561
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Guide vanes, Pressure, Turbines, Blades, Turbulence, Probes, Reynolds number, Vortices
Proceedings Papers

Wheel Strut Interference

Lasse M. Christoffersen, Lennart Lo¨fdahl, Anders Jo¨nson
Proc. ASME. FEDSM2006, Volume 2: Fora, 443-447, July 17–20, 2006
Paper No: FEDSM2006-98511
DOI: https://doi.org/10.1115/FEDSM2006-98511
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Topics: Struts (Engineering), Wheels, Flow (Dynamics), Vehicles, Belts, Boundary-value problems, Complex systems, Computational fluid dynamics, Drag (Fluid dynamics), Fluid dynamics