FLUID MECHANICS LECTURE

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Presentation transcript:

FLUID MECHANICS LECTURE ÓBUDA UNIVERSITY FLUID MECHANICS LECTURE Vázlat, Csak belső használatra Dr. Ferenc Szlivka Professor Dr. Szlivka: Fluid Mechanics 1. chapter

Properties of Fluids and Gases 1. Chapter Dr. Szlivka: Fluid Mechanics 1. chapter

Dr. Szlivka: Fluid Mechanics 1. chapter Phases diagram tcrit OC pcrit bar vcrit m3/kg r kg/m3 Water 374 225 3.1 10-3 322 oxygen -119 51 2.33 10-3 429 nitrogen -147 34.6 3.20 10-3 312 air -141 38 2.98 10-3 335 Carbon dioxide 31.1 73 2.15 10-3 464 Dr. Szlivka: Fluid Mechanics 1. chapter

Three-phase system p-v-T Dr. Szlivka: Fluid Mechanics 1. chapter

Saturation-vapor pressure Dr. Szlivka: Fluid Mechanics 1. chapter

Cavitation erosion on a ship screw Fig. 1.3 Dr. Szlivka: Fluid Mechanics 1. chapter

Ideal gas state equation isotropic (exponent) power cp Isobaric heat capacity cv Isochoric heat capacity Dr. Szlivka: Fluid Mechanics 1. chapter

Dr. Szlivka: Fluid Mechanics 1. chapter Air Dr. Szlivka: Fluid Mechanics 1. chapter

Ideal gas simple state exchanging p-v and T-s on diagram Dr. Szlivka: Fluid Mechanics 1. chapter

Isotherm state exchange Dr. Szlivka: Fluid Mechanics 1. chapter

Isochor state exchange Dr. Szlivka: Fluid Mechanics 1. chapter

Dr. Szlivka: Fluid Mechanics 1. chapter Isobar state exchange Dr. Szlivka: Fluid Mechanics 1. chapter

Adiabatic state exchange Dr. Szlivka: Fluid Mechanics 1. chapter

Politropic state exchange Dr. Szlivka: Fluid Mechanics 1. chapter

Compressibility of liquids 1.2 tab. Liquid Young (elastic) modulus"E" Mpa Etil alcohol 896 Petrol 1 062 Diesel oil 1 303 Water 2 179 Glycerin 4 509 Mercury 24 750 Steel 200 000 Áaésé Dr. Szlivka: Fluid Mechanics 1. chapter

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