[유체역학] 유체역학(몇판인진 모르겠음)목차에서 참고하세요) 완전체
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작성일 23-01-30 17:58
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Local pressure = 27.3 in.-Hg = 92.45 kPa.
APPROACH
of elevation are significant.
PROBLEM 2.1
kg·K, ρ = 1.22 kg/m3.
92, 450N/m2
Apply the ideal gas law for local conditions.
2. Answer ⇒ Recommendation—use the local value of density because the effects
p
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(287 kg/m3) (296.7K)
a.) Ideal gas law
RT
1. The density difference (local conditions versus table value) is about 12%. Most
Properties: From Table A.2, Rair = 287 J
설명
b.) Table value. From Table A.2
유체역학
=
COMMENTS
= 1.086 kg/m3
Situation: An engineer needs density for an experiment with a glider.
1
목차 복사해놨으니 몇판인진 모르겠습니다. 알아서 받아가세요
ρ =
Local temperature = 74.3 ◦F = 296.7K.
ρ = 1.22 kg/m3 (table value)
ANALYSIS
(b) Compare calculated density with the value from Table A.2, and make a recommendation.
of this difference is due to the effect of elevation on atmospheric pressure.
ρ = 1.09 kg/m3 (local conditions)
[유체역학] 유체역학(몇판인진 모르겠음)목차에서 참고하세요) 완전체
목차 복사해놨으니 몇판인진 모르겠습니다. 알아서 받아가세요
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Find: (a) Calculate density using local conditions.
다.
