Fluid Dynamics

Angular momentum is a property of a rotating object that describes its tendency to keep rotating. It is calculated as the product of an object's moment of inertia and its angular velocity. Similar to linear momentum, angular momentum is conserved in the absence of external torques.

The viscosity of a fluid affects its rate of convection by influencing how easily it can flow. A fluid with high viscosity will flow more slowly, leading to slower rates of convection. Conversely, a fluid with low viscosity will flow more easily, promoting faster rates of convection.

Yes, predictability is a property of gases. Gas behavior can be described using equations of state that allow scientists to predict how gases will behave under different conditions of pressure, temperature, and volume. This predictability is essential for many applications in chemistry and physics.

Euler's equation of motion in spherical polar coordinates describes the dynamics of a rigid body rotating about a fixed point. It includes terms for the inertial forces, Coriolis forces, and centrifugal forces acting on the body. The equation is a vector equation that relates the angular acceleration of the body to the external torques acting on it.

The velocity of the fluid affects convection heat transfer by influencing the rate at which heat is transferred. Higher fluid velocity results in increased heat transfer due to improved mixing and enhanced convective heat transfer coefficients. This can lead to more efficient cooling or heating processes in applications like heat exchangers or HVAC systems.

Friction force is equal to the force applied only when the object is not moving or it is just beginning to slide. Once the object has started motion completely, it means that the force applied has exceeded the frictional force

You would be lying on the surface tension of the water, with the pressure of your body evenly distributed across the water. The surface tension allows you to float effortlessly.

Yes it does. Friction tends to slow down objects in motion, like if you throw a brick through the air, it will not go far, depending on the force you used to throw the brick. Its speed will gradually decline due to the brick's friction with air. Now if you threw a football through the air using the same force that you used to throw the brick, it will go a lot farther than the brick because of its shape. The blunt edge of the football makes it easier to 'slice' through the air, thus creating less friction. It is the same aspect with the shape of a car. The front of the car is blunt, so it will 'cut' through the air without much friction.

The coefficient of discharge is needed to account for energy losses and inefficiencies in fluid flow systems. It helps to adjust theoretical calculations to more closely match real-world conditions, resulting in more accurate predictions and designs for fluid flow applications.

In the absence of gravity, Pascal's law still holds true. This principle states that a change in pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid and to the walls of its container. Therefore, even in a zero-gravity environment, the pressure exerted on a fluid will be distributed uniformly throughout the fluid.

I believe the shorter the mean free path, the higher the density. Basically, the closer the molecules are, the more dens it is. That is why when you add pressure, the density goes up ... by this equation.

d = PM/RT

P=pressure

M=molar mass

R=gas constant

T=absolute temperature

Basically, the more pressure put on a gas, the closer it goes to being a liquid... which is denser. The bigger the gas (molar mass) the smaller the mean free path, the denser it is.

However, I do not know how to relate mean free path mathematically to density yet.

Roughness increases the frictional resistance to fluid flow, which in turn affects the Reynolds number. As roughness increases, the frictional forces also increase, leading to a decrease in the Reynolds number for a given flow situation. This can impact the flow regime and overall behavior of the fluid flow.

Viscosity of a liquid is determined by the intermolecular forces between its molecules. Strong intermolecular forces lead to higher viscosity, as molecules resist sliding past each other. Temperature also affects viscosity, with higher temperatures decreasing viscosity by increasing molecular motion.

To reduce air resistance, you can streamline the shape of the object moving through the air, reduce the surface area exposed to the air, minimize any appendages or protrusions, and use smooth, aerodynamic surfaces to minimize drag. Additionally, reducing the speed at which the object moves through the air can also help decrease air resistance.

-- If the wood has sunk ... such as teak, ebony, or mahogany ... then its volume is 0.525 L.

-- If the wood is floating, then the portion under the water line has a volume of 0.525 L, and

the portion above the water line has volume that we can't state with the information given.

It is the ratio of (mdot*Cp)min/(mdot*Cp)max where the heat exchanger contains two fluids for which the mdot*Cp should be calculated for each to determine which one is greater. by doing so one can define the ability of one fluid to carry thermal/heat energy with respect to the other. so this is a way of saying how well can heat be transferred and so how effective is the heat exchanger

Extrusion is a manufacturing process where material is pushed through a die to create a specific shape or profile.

Work is done when a force is applied to an object and it causes the object to move in the direction of the force. Mathematically, work is calculated as the force applied multiplied by the distance the object moved in the direction of the force. If there is no movement or if the force is not in the same direction as the movement, then no work is being done.

The pressure of a fluid is proportional to the depth of the fluid and its density. This relationship is described by the hydrostatic pressure formula: ( P = \rho \cdot g \cdot h ), where ( P ) is the pressure, ( \rho ) is the density of the fluid, ( g ) is the acceleration due to gravity, and ( h ) is the depth of the fluid.

increases. This increase in air pressure can cause the bag to expand outward, in an attempt to reach equilibrium with the surrounding pressure.