A stable volume integral equation formulation based on equivalent volumetric currents is presented for modeling electromagnetic scattering of highly inhomogeneous dielectric objects. The proposed formulation is numerically solved by means of Galerkin method of moments on uniform grids, allowing for acceleration of the matrix-vector products associated with the iterative solver with the help of ...

This paper has focused on the formulation of the biological fish propulsion mechanism given by Sir J. Lighthill mathematical slender body theory for a bio-inspired robotic fish. A 2-joint, 3-link multibody vehicle model biologically inspired by a body caudal fin (BCF) carangiform fish propulsion is designed. The objective is to investigate and show that a machine mimicking real fish behavior ca...

A Mach 0.9 jet at Reynolds number 3600 is simulated along with its radiated sound by direct numerical solution of the flow equations. The numerical simulation is shown to be in excellent agreement with experimental measurements at the same flow conditions. Basic turbulence and sound statistics are presented and analyzed. Pressure data is Fourier transformed in the streamwise direction and in ti...

No AccessTechnical NotesLighthill Stress Flux Model for Ffowcs Williams–Hawkings Integrals in Frequency DomainZhiteng Zhou, Hongping Wang, Shizhao Wang and Guowei HeZhiteng ZhouState Key Laboratory of Nonlinear Mechanics, Chinese Academy Sciences, 100190 Beijing, People’s Republic China*Ph.D. Candidate, Institute Mechanics; also School Engineering University 100049 China.Search more papers by t...

This article presents a BIE (Boundary Integral Equation) modeling that applies the technique of domain mapping (Shiah and Tan (1998) [12]) as well as MRM (Multiple Reciprocity Method (Nowak (1989) [10])) to treat the problem of 3D anisotropic heat conduction involving arbitrary volume heat source. By the domainmapping technique, the original function of the volume heat source is accordingly tra...