Problem 9.5 To predict the drag on an aircraft at a flight speed of 150 m/s, where the condition of air is such that the local speed of sound is 310 m/s, a pressurised low temperature tunnel is used. Density, viscosity and local sonic velocity at tunnel condition are 7.5 kg/m , 1.22 × 10-5 Ns/m2 and 290 m/s. Determine the flow velocity and the scale of the model. Assume full dynamic similarity should be maintained. Density and viscosity at the operating conditions are 1.2 kg/m 3 and 1.8 × 10-5 Ns/m2 .
Thank you mam. This is very easy to understand
nice teaching mam
Well explained.all students should see
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I agree with you 🙋🏻♂️
Problem 9.5 To predict the drag on an aircraft at a flight speed of 150 m/s, where the
condition of air is such that the local speed of sound is 310 m/s, a pressurised low temperature
tunnel is used. Density, viscosity and local sonic velocity at tunnel condition are 7.5 kg/m
,
1.22 × 10-5 Ns/m2 and 290 m/s. Determine the flow velocity and the scale of the model.
Assume full dynamic similarity should be maintained. Density and viscosity at the operating
conditions are 1.2 kg/m
3 and 1.8 × 10-5 Ns/m2
.
Mene book meh padha tha ratio of length prototype to length of model equal lenth ratio.aap ulta bata rahe ho .kon sa sahi he?
Mam you are genius... thankyou so much ❤
Thank you 🙂 stay connected... all the best for exam 🙂
@@professornidhitrivedi4412 thanks mam ❤️👍
thank you maam 😍
Dr. But Lr =(Lp/Lm) . Explaining incorrectly
Thank you mam.very detailed explanation.
@niraj kumar... thank you...stay connected to channel 🙂
i need ispens mathode.
Thank you madam 🙏
Thnk u mam,.. I understood sme ...bt try to explain in English Bcse I have language prblm...
@Thiru Kumaran thank you!! I hope you understand it...very soon new channel will start...till then stay connected to channel 🙂