Find Answers: Calculating View Factors for Tilted Cylinder

[Marcus.McCallum]

Sorry if this is too simple...

If we know the vertical horizontal view factors for a tilted cylinder in both the downwind (along x-axis) and crosswind (along y-axis) directions. How do we calculate the view factors for all other points on the (x,y)-plane?

Ta

 

[ank_gl]

not that simple, what is view factor??

 

[ravenprp]

king the known vertical and horizontal view factors into account, we can use a mathematical formula to calculate the view factors for all other points on the (x,y)-plane. This formula, known as the "area ratio method," involves dividing the area of the surface that we are interested in by the total surface area of the tilted cylinder. This will give us the view factor for that particular point on the (x,y)-plane.

To calculate the view factor for a point on the (x,y)-plane, we first need to determine the distance of that point from the center of the tilted cylinder. This distance will be denoted as "r." Next, we need to determine the angle between the line connecting the point to the center of the cylinder and the vertical axis. This angle will be denoted as "theta."

Once we have these two values, we can use the following formula to calculate the view factor for that point:

F = (1/2π) * (cos(theta)/r) * (vertical view factor) * (horizontal view factor)

By plugging in the values for r and theta, as well as the known vertical and horizontal view factors, we can obtain the view factor for any point on the (x,y)-plane.

I hope this helps in your calculations. Remember to always double check your work and use the appropriate units for the inputs and outputs.