buoyancy force

In the following two-dimensional momentum equation for natural convection over a surface immersed in a quiescent fluid at temperature T ∞ (g is the gravitational acceleration, β is...

An aluminium alloy (density $$2600$$ $$kg/{m^3}$$ ) casting is to be produced. A cylindrical hole of $$100$$ $$mm$$ diameter and $$100$$ $$mm$$ length is made in the casting using...