Pressure distribution phenomena over a wedge and sphere surface in uniform flow

• Published in: International journal of environmental science and technology (Tehran) Vol. 4; no. 3; pp. 395 - 400
• Main Authors: Rana, M. Sohel, Hoque, A. T. M. Rafiqul, Hossain, M. Asadul
• Format: Journal Article
• Language: English
• Published: Heidelberg Center for Environment and Energy Research and Studies (CEERS) 01-06-2007; Springer Nature B.V
• Subjects: Pressure distribution; Pressure distribution, uniform flow, wedge shape, sphere shape, reynolds number; Reynolds number
• ISSN: 1735-1472; 1735-2630
• DOI: 10.1007/BF03326298

In this paper, experimentally the pressure distribution over wedge and
sphere surface in uniform flow has been investigated. Fluid flow over a
smooth wedge surface was investigated experimentally to determine the
pressure distribution at different values of Reynolds numbers and wedge
angles as well as pressure distributions around the sphere of different
size are reported for different Reynolds numbers. The variation of
static pressures is larger near the wedge vertex and gradually
decreases along the length of the wedge surface. At the forward
stagnation point the pressure distribution depends on the size of
spheres. Separation of flow takes place at an angle of 78° from
forward stagnation point for all sizes of spheres. At the rear
stagnation point of the sphere the pressure distribution predicts
negative pressures. Experimental results provide useful information of
interest to potential industrial application. It helps in determining
the shape of various wedge and sphere surfaces used in industries for
cooling or heating of different wedge surfaces. In the present
experiment, it has been found that the pressure near vertex lower as
the included angle of the wedge decreases and at lower values of
Reynolds number.