Browsing Mathematics by Issue Date
Now showing items 120 of 67

On the propagation of acceleration waves in vibrational and radiative nonequilibrium magnetogasdynamic flows
(1994)The effect of magnetic field on the propagation of acceleration waves in vibrational and radiative nonequilibrium gas flows, which is induced by the motion of a piston advancing with finite acceleration into a constant ... 
Dynamic interaction between boundary layer flow and groundwater flow separated by a porous bed
(1994)This paper examines the problem of dynamic interaction between a steadystate axisymmetric boundary layer flow over a fluidsaturated porous bed and a uniform Darcy flow occurring in the bed. The analysis is based on the ... 
Buoyancyinduced flow of nonnewtonian fluids in a porous medium past a vertical flat plate with nonuniform surface heat flux
(1994)Steady buoyancyinduced flow of a nonNewtonian fluid in a porous medium bounded by a vertical flat plate with prescribed variable wall heat flux is investigated analytically by KarmanPohlhausen integral method and ... 
Free convection about axisymmetric bodies immersed in inhomogeneous porous medium
(1994)The problem of free convective heat transfer from a nonisothermal axisymmetric body immersed in an inhomogeneous porous medium is analysed on the basis of boundary layer approximations. An approximate method based on the ... 
Convective heat transfer across a horizontal impermeable partition
(1994)The aim of this paper is to study the natural convection flow on both sides of an impermeable horizontal partition separating two semiinfinite fluid saturated porous reservoirs maintained at different temperatures. As a ... 
Transient free convection in a fluid saturated porous media with temperature dependent viscosity
(1994)The effect of temperature dependent viscosity on the heat transfer rate for a transient free convection in a porous medium adjacent to a vertical flat surface is studied. Solutions are obtained numerically by a suitable ... 
On the generalized forms of exact solutions to the liouville equation via direct approach
(1994)Using the direct approach due to Clarkson and Kruskal [1] two generalized forms of exact solutions to the Liouville equation are presented that eventually enable recovering all available exact solutions obtained via group ... 
Axisymmetric flow near a rotating permeable bed
(1995)Steadystate boundary layer flow generated on a rotating fluidsaturated porous bed when a column of axisymmetric frictionless potential flow arriving from infinity impinges on it is studied numerically by employing an ... 
Transient NonDarcy Free Convection With Temperature Dependent Viscosity
(1995)Transient nonDarcy free convection adjacent to vertical or horizontal permeable flat surfaces embedded in a fluidsaturated porous medium is investigated by using Forchheimer extended Darcy law. The viscosity of the fluid ... 
Theory and methodology: A bilevel bottleneck programming problem
(1995)This paper studies a bilevel programming problem with linear constraints, and in which the objective functions at both levels are concave bottleneck functions which are to be minimized. The problem is a nonconvex ... 
Fuzzy Data Distortion
(1995)Fuzzy approach has been exploited and successfully tested for data distortion to achieve disclosure control and data security in patient record statistical databases of fifty thousand monthly records in DPS7/45 (Honeywell ... 
On the Propagation of Waves Due to a Localized Periodic Source in an Unbounded is Orthopic Rotating Medium Permeated by a Magnetic Field
(1995)Using the Lightthil (1) Technique an attempt is made to study the Propagation of waves generated by a localized periodic Sources of Frequency in an unbounded isotrophic conducting and uniformly rotating medium with constant ... 
Numerical technique for solving convectivereactiondiffusion equation
(1995)By using spottingup technique and cubic splines, a numerical algorithum of second order accuracy is developed to solve the nonlinear equation ut= Re1 uxx+ [f(U)]x + h(u) with prescribed initial and boundary conditions. ... 
A numerical study of a converging cylindrical shock problem in relaxing gas flow
(1995)By modifying Rusanov’s difference scheme as developed for a quasilinear hyperbolic system of partial differential equations in quasiconservative form, a converging cylindrical shock problem in vibrationally relaxing gas ... 
Ranking in quadratic integer programming problems
(1996)The present paper develops an algorithm for ranking the integer feasible solutions of a quadratic integer programming (QIP) problem. A linear integer programming (LIP) problem is constructed which provides bounds on the ... 
Casson fluid flow in a pipe filled with a homogeneous porous medium
(1996)The flow characteristics of a Casson fluid in a tube filled with a homogeneous porous medium is investigated by employing the Brinkman model to account for the Darcy resistance offered by the porous medium. This analysis ... 
EEstimation of increased flow resistance in a narrow catheterized artery — A theoretical model
(1996)The changed flow pattern in a narrow atheterized artery is studied and an estimate of the increased flow resistance is made. The anomalous behaviour of blood in small blood vessels has been taken into account by modelling ... 
Similarity reductions and painleve analysis for the nonlinear boltzmann equation
(Elsevier Science, 1996)Using scale invariant transformation we have obtained a new class of exact solution to the Boltzmann equation of order (p + 1). Further, computation of symmetry operators for Boltzmann equations of orders 2, 3, 4 and 5 has ... 
Isogroup classification of equations of meteorology
(1996)Isogroups of a system of nonlinear partial differential equations of meteorology have been derived for various choices of the Coriolis parameter, which is a function of one variable. These group structures have further ... 
An (m, M) machine repair problem with spares and state dependent rates: A diffusion process approach
(1997)The diffusion approximation model for (m, M) general machine repair problems with spare part support has been developed. The interfailure time and repair times are assumed to be generally identically and independently ...