Recent content by Ksum006

Does anyone here know how to calculate the reynolds number for a pulsating swirl flow? I've been trying to find the right expression for ages, I can't locate it. I'm sure it will be a integral equations based upon the frequency of swirl (i.e. 1Hz, 5Hz or 10Hz etc) Thanks

Ok, just quickly, I am a fourth year mechanical engineering student doing his thesis on electronic cooling. My project is on enhansing CPU cooling through the use of pulsating impinging jets. I'm trying to set up a rig where I can do some experiments. I am planning to use a compressed air...

Hi all, I was looking for a way to oscillate airflow at a particular frequency as fed from an electrical input. All I'm really looking for is a simple knife gate valve that opens and closes from a saw tooth (rectangular wave) input from an oscilloscope. I was thinking a Solenoid valve...

Hi all, I have been thinking about an interesting concept. I have the laptop version of the 7800go and I know that most programs don't support laptop versions of GPU and hence most programs use them inefficiently and this results in poor performance. I have come up with a few solution...

Yes I put that down. Many thanks for the reply.

Hi all, I have a very quick question. On a vernier calliper, what are the names of the measuring teeth that define the limits of measurement? Thanks

Hi robip, Are you a student at curtin university of technology in Perth, Australia, by any chance? :) .Ksum006

A motorcycle engine? I really hope you are not being serious ... Firstly, let's assume that u can get the required amount of lift from a motorcyle engine(very unlikely), and let's assume that it does fly(almost impossible) and on top of that let's assume that its legal(definitly not in most...

MeJennifer's comment may be true. However, I don't know of any warranty serivce that is as good as Dell's. Their after sales service is really good. I have an inspiron 9400 laptop which my brother accedently dropped on my tiles. It refused to even switch on! The Dell rep. came to my house...

I think it really depends on what u want to do with ur computer. If ur an arts grad get a mac if ur an engineering/science grad get windows. and i don't care what u are but don't get vista. if u want something that's pretty much indestructible in its software architecture get linux. Oh...

Gravity can only be ignored if u have a single datum line. This means that the mass flow rate coming into the diffuser is leaving it at the same physical level(height) with respect to a reference plane. If the datum line changes(ie. change in distance from reference plane to the centroid of the...

Sorry I've made a mistake .. that second equation is meant to be P * V(volume) = m R T note that m /v is density so P/RT = density hope that helps

Im pretty sure this has to do with the Steady Flow Energy equation from thermodynamics. This equation can equate velocities, pressures, mass flow rates, heat input/output and work input/output, enthalpy's and physical changes in height. for enthalpy use, h = c(p) dt For the density of the...

Hi all, Im a third year mechanical engineering student, starting on the topics of vibration analysis. Question: A rectangular prism bar is made up of two parts. The top layer is Steel(E=207E9 Pa) and the bottom layer is Aluminum(E=83E9 Pa). The bar is in axial motion. The dimensions are...