## THERMAL SCIENCE

International Scientific Journal

### NONLINEAR PERISTALTIC FLOW OF WALTER'S B FLUID IN AN ASYMMETRIC CHANNEL WITH HEAT TRANSFER AND CHEMICAL REACTIONS

**ABSTRACT**

In this paper, effects of heat and mass transfer on peristaltic transport of Walter's B fluid in an asymmetric channel are investigated. The governing equations are solved using regular perturbation method by taking wave number as a small parameter. Expressions for the stream function, temperature distribution, heat transfer coefficient, and mass concentration are presented in explicit form. Solutions are analyzed graphically for different values of arising parameters such as viscoelastic parameter, Prandtl, Eckert, Soret, Schmidt and Reynolds number. It has been found that these parameters considerably affect the considered flow characteristics. Results show that with an increase in Eckert and Prandtl number temperature and heat transfer coefficient increase while mass concentration decreases. Further, Mass concentration also decreases with increasing Soret and Schmidt number.

**KEYWORDS**

PAPER SUBMITTED: 2011-09-21

PAPER REVISED: 2012-05-06

PAPER ACCEPTED: 2012-05-04

**THERMAL SCIENCE** YEAR

**2014**, VOLUME

**18**, ISSUE

**4**, PAGES [1095 - 1107]

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