Title of article :
Visualization of the surface tension and gravitational effects on flow injection in center-gated disks
Author/Authors :
Chien-Te Li، نويسنده , , F.C. Lai b، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
4
From page :
230
To page :
233
Abstract :
Flow injection in center-gated disks is numerically studied in this paper for possible applications in the manufacturing of composite materials in microgravity environment. The numerical method, which combines the finite element method with a predictor/corrector scheme, is used to determine the transient flow field. The effects of gravitation and surface tension on the development of flow front profile and velocity field are examined for a wide range of the governing parameters (namely, the capillary and Bonds numbers). It has been found that surface tension tends to hold the flow front in symmetric shape while gravitation is to distort it. The balance of these two forces has significant effects on the front shape, front tip traveling speed and required injection pressure. Good agreement is found between the numerical prediction and the experimental results concerning the advancement of the flow front and the front shape. The present results provide useful information in the design of resin transfer molding process in space.
Keywords :
Resin transfer molding , Surface Tension , gravitational effect , composite material , Injection molding , microgravity
Journal title :
International Communications in Heat and Mass Transfer
Serial Year :
2010
Journal title :
International Communications in Heat and Mass Transfer
Record number :
1220633
Link To Document :
بازگشت