Abstract:
The aims of this research are to study high velocity liquid jets and shock wave
behavior of liquids with different properties. The liquid examined in this research
consisted of water, diesel fuel and jatropha curcas oil, and High velocity liquids
jets were generated using the projectile impact driven (PID) method along with
a pintle diesel engine nozzle with a 0.8 mm orifice diameter. The experiment
results were recorded by using a high speed video camera and shadowgraph
technique. From experimental results, it is found that the diesel fuel liquid jets
have the highest initial velocity of about 850 m/s while the jatropha curcas oil has
the lowest initial velocity of about 250 m/s. According to recorded data, high velocity
water jets differs in shape and behavior from diesel fuel and jatropha curcas oil jets.
This and other liquid jet and shock wave behavior are clearly illustrated in
recorded data. As a result, multiple shock waves are generated from jatropha curcas
oil with high velocity liquid jets. This is in sharp contrast to the liquid jets creating
with diesels fuel and water.