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Hello castmetal, I have read that document, the problem is it is for very low reynolds numbers and doesnt really apply to me. Thank you anyway

Yes in essence 0-90 would be sufficient. The reason I wanted 0-360 data is because our company is designing a water turbine and the blades will undergo incidences in all regimes. I cant even find 0-90 data on a flat plate, such a basic and fundamental shape yet there is only data on this thing...

Hello, thank you for the response. Ahh but herein lies the problem. They have flat plate data but not for a full 360 rotation. Maybe 0-18 degrees from what I have seen. I have googled everything regarding the flat plate vs. AoA from 0-360 and I cannot find that data.

Hello, I have searched the interwebs looking for this data and I cannot find it. I need Cd and Cl for a flat plate through an entire 360 degree rotation of AoA, including different sets of curves for different aspect ratios up to infinity. If anyone has this data it will be greatly...

dhill, You will need to know the mass of water, the heat input in BTU/s or Watts.. You will need to know, roughly, the surface area exposed to the water where the heat input is being generated (heating coils? I dont know what you use). You will need to assume some things like convection...

Good luck if you find something, I've been using ANSYS classic for a while and I would like to find a program that isn't as convoluted and arbitrary as ANSYS. Although it is a powerful tool, it is the farthest thing from user friendly.

Thanks for the help btrueblood!!

I just did a calculation for a 60 inch diameter disk rotating at 3600 RPM in air that is at 55 psi and 600F. I am getting about a 100 HP windage loss per side of disk. This is an estimation based off of flat plate flow calculating negative torque by discretizing the disk into 'bands' of radius...

Thank you btrueblood. Disk tip is not passing mach 1. The integration is not that simple, Reynolds number for depends on radius as does tangential velocity so it becomes a very convoluted integration. I will try to make assumptions to simplify it.

Hello, I am trying to calculate the power loss associated with windage for flat disks about 6 feet in diameter. If I have disk speed, diameter and fluid properties; is there a generalized formula for calculating power loss? I have found a document that calculates this value for a cylinder...

Thank you.

Hello, I am a little bit confused. From what I understand, pressure shouldnt rise through a heat exchanger, temperature is what is controlled through it. I was told from an AC technician that the pressure rises through a heat exchanger, I thought that was not possible since the gas is...

I need a way to calculate what the pressure drop across a typical automotive turbocharger turbine section is. For example, dont assume exhaust gas at 1400F as the working fluid. Just assume analytically, P1, T1 entering the turbine and P2, T2 exiting (air) what would be a good rough estimate...

Thanks for the info grunt, I will take that into account when designing my system.

R-22

Hello, I am not an HVAC designer, but I have a project that involves freon as the working fluid and a typical AC expansion valve. If the freon enters the expansion valve at some pressure and temperature in liquid state, what is the 'typical' exit pressure and temperature that must be seen...

Hello, I have done a few thermo-electric simulations for power distribution equipment. My advice is to learn about conjugate CFD models. Where the body temperature affects fluid properties and flow field etc... Also you assumptions on your transformer heat generation will be important for a...

Hello, I was asked to compute oil flow requirements for journal bearings for a power turbine. There are three bearings, two journal and one thrust, all fluid film. Shaft diameter is 12" and speed is 3600 RPM. That puts the surface speed at about 188 ft/s. I went to the kingsbury website and...

berkshire I think that one is perfect! Thanks!

I looked at the harbor freight model. It cannot store data. I am looking for a scope that can store pictures and upload them to a computer. I was thinking of a better idea, does anyone know of a way to attach a regular digital camera that you'd get at best buy to some type of fiber optic line...