## THERMAL SCIENCE

International Scientific Journal

### THIN FILM FLOW OVER AN UNSTEADY STRETCHING SHEET WITH THERMOCAPILLARITY IN PRESENCE OF MAGNETIC FIELD

**ABSTRACT**

An analysis is carried out to study the effects of thermocapillarity on thin film flow over an unsteady stretching sheet in presence of uniform transverse magnetic field and internal heat source/sink. Using a similarity transformation, the governing time dependent boundary-layer equations are reduced to a set of coupled ordinary differential equations and then solved numerically for some representative values of non-dimensional parameters using Nachtsheim and Swigert shooting iteration technique together with Runge-Kutta sixth-order integration scheme. It is observed that the thermocapillary action reduces the rate of heat transfer at the surface while dealing with conducting fluid in presence of magnetic field.

**KEYWORDS**

PAPER SUBMITTED: 2015-02-21

PAPER REVISED: 2015-08-08

PAPER ACCEPTED: 2015-09-16

PUBLISHED ONLINE: 2015-09-26

**THERMAL SCIENCE** YEAR

**2017**, VOLUME

**21**, ISSUE

**6**, PAGES [2369 - 2378]

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