DSpace Kolekce:
http://hdl.handle.net/11025/30269
2024-03-28T12:47:08ZDouble diffusive magnetohydrodynamic squeezing flow of nanofluid between two parallel disks with slip and temperature jump boundary conditions
http://hdl.handle.net/11025/26593
Název: Double diffusive magnetohydrodynamic squeezing flow of nanofluid between two parallel disks with slip and temperature jump boundary conditions
Autoři: Sobamowo, Gbeminiyi Musibau; Akinshilo, A. T.
Abstrakt: In this paper, double diffusive squeezing unsteady flow of electrically conducting nanofluid between two parallel
disks under slip and temperature jump condition is analyzed using the homotopy perturbationmethod. The obtained
solutions from the analysis are used to investigate the effects of the of Brownian motion parameter, thermophoresis
parameter,Hartmann number,Lewis number and pressure gradient parameters, slip and temperature jump boundary
conditions on the behavior of the nanofluid. Also, the results of the homotopy perturbation method are compared
to the results in the literature and good agreements are established. This study is significant to the advancements of
nanofluidics such as energy conservation, friction reduction and micro mixing biological samples.2017-01-01T00:00:00ZSobamowo, Gbeminiyi MusibauAkinshilo, A. T.MHD mixed flow of unsteady convection with radiation over a vertical porous plate: Lie group symmetry analysis
http://hdl.handle.net/11025/26592
Název: MHD mixed flow of unsteady convection with radiation over a vertical porous plate: Lie group symmetry analysis
Autoři: Rajput, Govind R; Patil, V. S.; Jadhav, B. P.
Abstrakt: In this paper, we study the magnetohydrodynamic (MHD) mixed unsteady flow over a vertical porous plate. The
system of non-linear partial differential equations governing the physical model is transformed into a system of
non-linear ordinary differential equations via Lie group analysis. Using the Runge-Kutta fourth order method
along with shooting technique the numerical analysis is carried out to study the effect of associated parameters
on the velocity, temperature and concentration distribution. Computed results for the velocity, temperature and
concentration distribution are discussed graphically.2017-01-01T00:00:00ZRajput, Govind RPatil, V. S.Jadhav, B. P.Virtual hybrid human body model for PTW safety assessment
http://hdl.handle.net/11025/26591
Název: Virtual hybrid human body model for PTW safety assessment
Autoři: Hynčík, Luděk; Bońkowski, Tomasz; Vychytil, Jan
Abstrakt: Road traffic accidents cause one of the highest numbers of severe injuries. The numbers of deaths and seriously
injured citizens prove that traffic accidents and their consequences are still a serious problem to be solved. Virtual
human body models play an important role to assess injuries during impact loading especially for scenarios, where
complex dynamical loading is taken into account. The most suffering group is so called vulnerable road users
(VRU) like powered two-wheelers (PTW) riders. The presented work contributes to increasing safety of PTW
riders by implementing virtual human body model for injury risk analysis. The scalable hybrid virtual human body
model Virthuman, which was formerly developed, validated and demonstrated in impact scenarios, is improved
by updated neck and shoulder models in order to describe the realistic kinematics during complex long duration
impact loading and presented in the oblique impact scenario compared to the THUMS results.2017-01-01T00:00:00ZHynčík, LuděkBońkowski, TomaszVychytil, JanLeather for motorcyclist garments: Multi-test based material model fitting in terms of Ogden parameters
http://hdl.handle.net/11025/26590
Název: Leather for motorcyclist garments: Multi-test based material model fitting in terms of Ogden parameters
Autoři: Bońkowski, Tomasz; Šoltés, Lukáš; Hynčík, Luděk; Kottner, Radek; Kochová, Petra
Abstrakt: This paper is focused on experimental testing and modeling of genuine leather used for a motorcycle personal
protective equipment. Simulations of powered two wheelers (PTW) accidents are usually performed using human
body models (HBM) for the injury assessment equipped only with the helmet model. However, the kinematics
of the PTW rider during a real accident is disturbed by the stiffness of his suit, which is normally not taken into
account during the reconstruction or simulation of the accident scenario. The material model proposed in this paper
can be used in numerical simulations of crash scenarios that include the effect of motorcyclist rider garment. The
fitting procedure was conducted on 2 sets of samples: 5 uniaxial samples and 5 biaxial samples. The experimental
characteristics were used to obtain the set of 25 constitutive material models in terms of Ogden parameters.2017-01-01T00:00:00ZBońkowski, TomaszŠoltés, LukášHynčík, LuděkKottner, RadekKochová, Petra