01645nam 2200409Ka 450 991069126990332120010628115947.0(CKB)5470000002344663(OCoLC)47211453ocm47211453(OCoLC)995470000002344663(EXLCZ)99547000000234466320010628d2001 ua 0engtxtrdacontentcrdamediacrrdacarrierPrecision, accuracy, and efficiency of four tools for measuring soil bulk density or strength[electronic resource] /Richard E. Miller, John Hazard, and Steven HowesPortland, OR :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,[2001]General technical report PNW ;RP-532Title from title screen.Drill core analysisEquipment and suppliesEvaluationPenetrometersEvaluationSoilsDensityMeasurementEquipment and suppliesEvaluationDrill core analysisEquipment and suppliesEvaluation.PenetrometersEvaluation.SoilsDensityMeasurementEquipment and suppliesEvaluation.Miller Richard E282125Hazard John W113555Howes Steven1382845Pacific Northwest Research Station (Portland, Or.)GPOGPOBOOK9910691269903321Precision, accuracy, and efficiency of four tools for measuring soil bulk density or strength3426930UNINA03343nam 22004815 450 991048354310332120230526232754.03-658-33439-810.1007/978-3-658-33439-0(CKB)4100000011781419(MiAaPQ)EBC6501069(DE-He213)978-3-658-33439-0(PPN)253857945(EXLCZ)99410000001178141920210224d2021 u| 0engurnn#008mamaatxtrdacontentcrdamediacrrdacarrierAerodynamic Study on the Vehicle Shape Parameters with Respect to Ground Simulation /by Chenyi Zhang1st ed. 2021.Wiesbaden :Springer Fachmedien Wiesbaden :Imprint: Springer Vieweg,2021.1 online resource (XXXII, 115 p. 85 illus., 10 illus. in color.)Wissenschaftliche Reihe Fahrzeugtechnik Universität Stuttgart,2567-03523-658-33438-X Basic Theories and State of the Art -- Results of the DrivAer Model -- Statistical Analysis of the Parameters -- Transferability Study on the SUV Model.Chenyi Zhang analyzes the influences of moving ground simulation technique in wind tunnel tests. In his work, the classical investigations on vehicle shape parameters with fixed ground conditions are reviewed with modern moving ground simulation technique. The investigations are performed by means of CFD simulations and model scale wind tunnel tests at IFS, University of Stuttgart. The shape parameters of two reference vehicles – the DrivAer and the AeroSUV model with notchback, fastback and estate back – are varied and investigated. The author presents different results in drag and lift for the varied geometry parameters. The classical results of the parametric study on the vehicle basic shapes for vehicle aerodynamics could be complemented with the findings of the present research. Contents Basic Theories and State of the Art Results of the DrivAer Model Statistical Analysis of the Parameters Transferability Study on the SUV Model Target Groups Researchers and students of mechanical engineering, especially automotive engineering Research and development engineers in the fields of aerodynamics, vehicle layout design and wind tunnel technology About the Author Chenyi Zhang did his PhD project in the field of vehicle aerodynamics and thermal management at the Institute of Automotive Engineering (IFS) at University of Stuttgart. He works as an engineer in driving resistance testing for a renowned German automobile manufacturer.Wissenschaftliche Reihe Fahrzeugtechnik Universität Stuttgart,2567-0352Motor vehiclesDesign and constructionComputer simulationAutomotive EngineeringComputer ModellingMotor vehiclesDesign and construction.Computer simulation.Automotive Engineering.Computer Modelling.629.2Zhang Chenyiauthttp://id.loc.gov/vocabulary/relators/aut1223395BOOK9910483543103321Aerodynamic Study on the Vehicle Shape Parameters with Respect to Ground Simulation2837914UNINA