2011 Vol. 32, No. 6

Display Method:
Effect of Thermal Radiation on MHD Viscous Fluid Flow and Heat Transfer Over a Non-Linear Shrinking Porous Sheet
G. C. Shit, R. Haldar
2011, 32(6): 635-646. doi: 10.3879/j.issn.1000-0887.2011.06.001
Abstract(1994) PDF(728)
Abstract:
Of concern was an investigation of the effects of thermal radiation on magnetohydrodynamic (MHD)flow and heat transfer over a non-linear shrinking porous sheet.The surface velocity of the shrinking sheet and the transverse magnetic field were assumed to vary as a power function of the distance from ...
Peristaltic Flow of Walter’s B Fluid in an Endoscope
S. Nadeem, Noreen Sher Akbar, T. Hayat, Awatif A. Hendi
2011, 32(6): 647-657. doi: 10.3879/j.issn.1000-0887.2011.06.002
Abstract(1842) PDF(815)
Abstract:
The peristaltic flow of a Walter's B fluid in an endoscope was studied.The problem was model in cylindrical coordinates system.The main theme of the present analysis was to study the endoscopic effects on the peristaltic flow of Walter's B fluid,because to the best of authors'knowledge no investigat...
Wave Transmission Through Laminated Composite Double-Walled Cylindrical Shell Lined With Porous Materials
K. Daneshjou, H. Ramezani, R. Talebitooti
2011, 32(6): 658-673. doi: 10.3879/j.issn.1000-0887.2011.06.003
Abstract(1713) PDF(686)
Abstract:
A study on free harmonic wave propagation in a double-walled cylindrical shell whose walls sandwich a layer of porous material was presented within the framework of the classic theory for laminated composite shells.The most effective component of the wave propagation through porous core was estimate...
Analysis of Non-Linear Stability and Post-Buckling for the Euler-Type Beam-Column Structure
ZHU Yuan-yuan, HU Yu-jia, CHENG Chang-jun
2011, 32(6): 674-682. doi: 10.3879/j.issn.1000-0887.2011.06.004
Abstract(2138) PDF(971)
Abstract:
Based on the assumption of finite deformation,the Hamilton variational principle was extended to a nonlinear elastic Euler-type beam-column structure located on a nonlinear elastic foundation,and the corresponding 3-dimension mathematical model for analyzing the non-linear mechanical behaviors of st...
PIV Measurements of Tip Vortex Wake Structure of a Wind Turbine
XIAO Jing-ping, WU Jie, CHEN Li, SHI Zhe-yu
2011, 32(6): 683-692. doi: 10.3879/j.issn.1000-0887.2011.06.005
Abstract(1807) PDF(896)
Abstract:
Large-view flow field measurements using PIV(particle image velocimetry)technique with high resolution CCD cameras on a rotating 1/8 scale blade model of NREL UAE PhaseⅥwind turbine were conducted in the engineering-oriented Ø3.2 m wind tunnel at the Low Speed Aerodynamics Institute of China Aerodyn...
Improved NSGA-Ⅱ in Multi-Objective Optimization Studies of Wind Turbine Blades
WANG Long, WANG Tong-guang, LUO Yuan
2011, 32(6): 693-701. doi: 10.3879/j.issn.1000-0887.2011.06.006
Abstract(1882) PDF(1030)
Abstract:
The non-dominated sorting genetic algorithm was improved with controlled elitism and dynamic crowding distance,obtaining a novel multi-objective optimization design algorithm for wind turbine blades.As an example,a 5 MW wind turbine blade design,taking maximum power coefficient and minimum blade mas...
An Active Control Scheme for Improving Mass Resolution of Film Bulk Acoustic Resonators
HE Xue-feng, LIU Xing, YIN Xian-fang, WEN Zhi-yu, CHEN Ke-wan
2011, 32(6): 702-709. doi: 10.3879/j.issn.1000-0887.2011.06.007
Abstract(1657) PDF(790)
Abstract:
High mass resolution of sensors based on film bulk acoustic resonators(FBARs)was required for detection of small molecules with low concentration.An active control scheme was herein presented for improving the mass resolution of FBAR sensors by adding a feedback voltage,which was obtained by giving ...
Analysis on High-Temperature Oxidation and the Growth Stress of Iron-Based Alloy Using Phase Field Method
YANG Fan, LIU Bin, FANG Dai-ning
2011, 32(6): 710-717. doi: 10.3879/j.issn.1000-0887.2011.06.008
Abstract(1349) PDF(837)
Abstract:
High-temperature oxidation was an important property to evaluate the thermal protection materials.However,as oxidation was a complex process involving microstructure evolution,its quantitative analysis had always been a challenge issue.A phase field method based on thermodynamics theory was develope...
Experimental and Numerical Investigation on Sound Generation From Airfoil-Flow Interaction
JIANG Min, LI Xiao-dong, ZHOU Jia-jian
2011, 32(6): 718-729. doi: 10.3879/j.issn.1000-0887.2011.06.009
Abstract(1716) PDF(763)
Abstract:
The aerodynamic noise due to the interaction of the incoming turbulence with rotating blades was one of the most important components of wind turbine noise.The rod-airfoil configuration was utilized to investigate the interaction phenomenon both experimentally and numerically.The distribution of uns...
Stability and Dispersion Analysis of Reproducing Kernel Collocation Method for Transient Dynamics
LUO Han-zhong, LIU Xue-wen, HUANG Xing-chun
2011, 32(6): 730-740. doi: 10.3879/j.issn.1000-0887.2011.06.010
Abstract(1862) PDF(1054)
Abstract:
Reproducing kernel collocation method based on strong formulation was introduced for transient dynamics.von Neumann stability and dispersion analysis of reproducing kernel collocation method with central difference temporal discretization was derived to evaluate the stability condition for second or...
Essential Consistency of Pressure Poisson Equation Method and Projection Method on Staggered Grid
WANG Yi
2011, 32(6): 741-745. doi: 10.3879/j.issn.1000-0887.2011.06.011
Abstract(1956) PDF(1070)
Abstract:
A new pressure Poisson equation method was established on staggered grid by keeping the viscous terms in the source of pressure Poisson equation.The derivations show that newly established pressure equation has the identical form of the equation in projection method.The results show that selection b...
Stokes Flow Before a Plane Boundary With Mixed Stick-Slip Boundary Conditions
N. Akhtar, G. A. H. Chowdhury, S. K. Sen
2011, 32(6): 746-753. doi: 10.3879/j.issn.1000-0887.2011.06.012
Abstract(2111) PDF(874)
Abstract:
A general theorem for Stokes flow about a plane boundary with mixed stick-slip boundary conditions was established.This was done by making use of a representation for the velocity and pressure fields in three-dimensional Stokes flow,in terms of a biharmonic function A and a harmonic function B. The ...
Almost Surely T-Stability and Convergence for Random Iterative Algorithms
ZHANG Shi-sheng, WANG Xiong-rui, LIU Min, ZHU Jin-hua
2011, 32(6): 754-760. doi: 10.3879/j.issn.1000-0887.2011.06.013
Abstract(1885) PDF(832)
Abstract:
The purpose was to study the almost surely T-stability and convergence of Ishikawa-type and Mann-type random iterative algorithms for some kind of φ-weakly contractive type random operators in a separable Banach space.Under suitable conditions the Bochner integrability of random fixed points for thi...