Question

Consider the nozzle given below. The nozzle exit has an area 0.0011 m^2 and a pressure of 0 kPa (gauge). Given the mass flow and cross sectional area of the nozzle entrance, what is the pressure at the nozzle entrance (P1) ? Give the answer in kPa gauge, but do not enter the units in the answer box. The fluid is water with a density of 1000 kg/m^3. Ignore work and friction. The external force is still unknown.

mass flow = 37 kg/s

Nozzle entrance = 0.0061 m^2

Pressure at nozzle entrance (P1) = ?

т, Vi, A1, Pi rm, V2, A, P2

Answer 1

Guvin How nak m P- 1000l9/m3 dens ty 37kg/sec atmosphunc Exit Enday m3k3sec Ai= 0.0061m2 Ae 0.001lm2 Perit =Pe-1Patm Veloily i Pueure P Veoty Ve P Ae Ve rm 8 Ai Vi lo 0o x 0.0011 X Ve 37 000 x 0 0061 X V Vi Ve 33 6363 m/sec

GIven theae a4 head onA Bemoulli Equahon AMplry 2. Ne tZe Vi2 Pe g Sameheught Pi Ve2-Vi 2 Pe

(V2-Vi 2) Pi-Pe) 2 Pi Patm to00 (33.6363 2 Pi lGauge) S473 06-8868 Pa P(Gauge)-Pi (Gauge) = 5Y7. 306 88 K Ansaer