Aerodynamics investigations and optimization of a simplified pick-up truck with wind tunnel and CFD testing

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dc.contributor.authorYathiraj, Karthik
dc.contributor.authorChaithanya, Pavan
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.departmentChalmers University of Technology / Department of Mechanics and Maritime Sciencesen
dc.contributor.examinerVdovin, Alexey
dc.contributor.supervisorVdovin, Alexey
dc.date.accessioned2024-12-09T15:53:20Z
dc.date.available2024-12-09T15:53:20Z
dc.date.issued2024
dc.date.submitted
dc.description.abstractThis master’s thesis presents a comprehensive study on the aerodynamics and optimization of a simplified generic pick-up truck model through combined wind tunnel testing and computational fluid dynamics (CFD) simulations in StarCCM+. The primary objective is to understand and investigate the aerodynamic behavior of the generic pickup truck and design new attachments for the pickup truck on the trailer. Based on existing knowledge, design optimization techniques were used to find design changes that could reduce aerodynamic drag. A flat underbody, a closed grill gap, and various rear attachments were among the changes made to the truck’s shape. A comprehensive study and cross-validation of the suggested aerodynamic improvements were made possible by the combination of wind tunnel testing and CFD. The ANSA software was used to optimize the CAD model. 3D printing was later used to create a 1/10 scaled-down model of the generic pickup truck, along with three distinct attachments called Flat back, Hatch back, and Fastback. Later tested the 3D printed model in Chalmers University of Technology’s wind tunnel in Sweden. Drag forces were captured with the aid of wind tunnel experiments. These experimental findings served as a standard by which to validate the CFD models. The airflow surrounding the vehicle was then simulated using extensive CFD analyses using the StarCCM+ software. The findings presented in this paper are the outcome of research and comprehension of the vehicle’s aerodynamic behavior. They also show enhancements in the pickup truck’s aerodynamic performance, with the quick back attachment lowering the drag coefficient. In addition to highlighting the potential for significant fuel and pollution reductions in pick-up trucks through aerodynamic optimization, this work shows how well experimental and computational methodologies may be used for aerodynamic investigations.
dc.identifier.coursecodeMMSX30
dc.identifier.urihttp://hdl.handle.net/20.500.12380/309024
dc.language.isoeng
dc.setspec.uppsokTechnology
dc.subjectAerodynamics
dc.subjectWind tunnel testing
dc.subjectComputational Fluid Dynamics
dc.subjectStarCCM+
dc.subjectAerodynamic drag
dc.subjectRear attachments
dc.subjectANSA software
dc.subject3D printing
dc.subjectFlat bed
dc.subjectHatch back
dc.subjectFastback
dc.subjectDrag coefficient
dc.titleAerodynamics investigations and optimization of a simplified pick-up truck with wind tunnel and CFD testing
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster's Thesisen
dc.type.uppsokH
local.programmeMobility engineering (MPMOB), MSc
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