Zefanya Valeryan Harbangan Hutabarat

Biodata

Nama : Zefanya Valeryan Harbangan Hutabarat

NPM : 2106630611

TTL : Depok, 31 Januari 2003

Mahasiswa Teknik Mesin UI angkatan 2021

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Pertemuan Minggu 1

Catatan Pertemuan Minggu 1

Komponen Nilai

1. Value (adab)

2. Knowledge (Paham: konsep & teori)

3. Ketrampilan (Terampil menerapkan konsep, hands-on, analytical skill)

Mekanika fluida adalah cabang mekanika yang mempelajari mengenai pergerakan dari fluida. Pergerakan ini diamati dalam bentuk cairan maupun gas. Dalam mekanika fluida juga dipelajari fluida yang tidak dalam keadaan bergerak atau diam.

Kinematika adalah tinjauan gerak partikel zat cair tanpa memperhatikan gaya yang menyebabkan gerak tersebut. Kinematika mempelajari kecepatan di setiap titik dalam medan aliran pada setiap saat. Di dalam aliran zat cair, pergerakan partikel-partikel zat tersebut sulit diamati, oleh karena itu biasanya digunakan kecepatan pada suatu titik sebagai fungsi waktu untuk mendefinisikan pergerakan partikel. Setelah kecepatan didapat, maka dapat diperoleh distribusi tekanan dan gaya yang bekerja pada zat.

Pertemuan Minggu 2

Melakukan tanya jawab dengan ChatGPT :

Zefanya : What is hydrostatic pressure?

ChatGPT : Hydrostatic pressure refers to the pressure generated by a fluid that is at rest or not moving due to the weight of the fluid above it. This pressure is caused by the gravitational force acting on the fluid directly proportional to the density of the fluid and the height of the fluid column above the point of rest. The hydrostatic pressure at a point in the fluid is the same in all directions and depends only on the depth at which the point is below the surface of the fluid. The formula for hydrostatic pressure is:

P = ρgh

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

Zefanya : Why is there a difference in fluid levels on the manometer?

ChatGPT : The difference in the height of the fluid on the manometer occurs due to the difference in pressure at two points in the fluid. When there is a difference in pressure at the two points, the fluid will flow from an area with lower pressure to an area with higher pressure. This fluid flow causes a difference in fluid level at both ends of the manometer. For example, if one end of the manometer is connected to a source of higher pressure than the other, the pressure at the first end will be greater than the pressure at the second end. This will cause the fluid in the manometer to flow from the lower pressure end to the higher pressure end, causing a difference in the height of the fluid column at the two ends of the manometer.

Zefanya : What are the advantages & disadvantages of U-Shaped manometers?

ChatGPT : U-shaped manometers can be used to measure pressure in hydraulic systems, pneumatic systems, heating systems, and other systems. The advantages of using a U-shaped manometer are that it is easy to use, does not require an electrical power supply, and can provide accurate and reliable results. However, the use of mercury as a liquid in U-shaped manometers can pose health and environmental risks, so it is now more common to use manometers with alternative fluids such as water or oil.