Tugas 1 Manometer Mekanika Fluida Dasar

Tugas Manometer

1. Mekanisme Kerja Manometer Analog

Manometer analog merupakan alat untuk mengukur tekanan pada sistem fluida. Prinsip dasar dari mekanisme kerja manometer analog sendiri yaitu dengan mengukur suatu tekanan yang disalurkan melalui tabung atau pipa U dengan suatu cairan. Cara mengukur tekanan pada alat tersebut yaitu saat terjadinya perbedaan ukuran panjang cairan antara lengan pada pipa U,salah satu sisi pada tabung atau pipa U tersebut meningkat dan sisi lainnya menurun.

Hasil Tanya-Jawab soal dengan ChatGPT

Question:

A closed, 5-m-tall tank is filled with water to a depth of 4 m. The top portion of the tank is filled with air which, as indicated by a pressure gage at the top of the tank, is at a pressure of 20 kPa. Determine the pressure that the water exerts on the bottom of the tank.

Chat GPT’s Answer:

The pressure exerted by a fluid at a given depth is given by the formula:

P = ρgh

where P is the pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the depth of the fluid.

In this case, the water in the tank is exerting pressure on the bottom of the tank. The density of water is 1000 kg/m³, and the acceleration due to gravity is 9.81 m/s². The depth of the water is 4 m. So, the pressure exerted by the water on the bottom of the tank is:

P_water = ρ_water * g * h = 1000 kg/m³ * 9.81 m/s² * 4 m = 39,240 Pa

To convert Pa to kPa, we divide by 1000:

P_water = 39,240 Pa / 1000 = 39.24 kPa

Therefore, the pressure that the water exerts on the bottom of the tank is 39.24 kPa.

Note that the pressure of the air at the top of the tank is not relevant to this calculation, as the water and air are separated by the top of the tank, which is a solid surface that does not transmit pressure.