Obliczanie, że drag force on submerged obiekty is essential in fluid dynamics. It helps in designing ships, submarines, and underwater vehibles. This guidee provides a provides a procurforward approvach tu conforming and computing drag force in various contrios.

Understanding Drag Force

Przeciągnij siłę jej rezystancji, że wykona fluid on a moving object. It depends on factors such as the fluid 's velocity, thee object' s shape, and the fluid 's performancies. The basic formula for drag force is:

(1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (1): (2); (3): (1): (1): (1); (1): (1); (1): (1); (1): (1); (1): (1); (1); (1): (1); (1): (1); (1): (5); (5) (3); (3); (3); (3) (3); (1); (1); (1); (1) (1); (1) (1) (1) (1); (1);

Kiedy:

  • FLT: 1; FLT: 0; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLT: 3; FLS: 3X3;: Siła ciągnienia
  • Xi1; Xi1; FLT: 0 Xi3; Xi3; Xi1; Xi1; FLT: 1 Xi3; Xi3;: Fluid density
  • Xi1; Xi1; FLT: 0 Xi3; Xi3; v Xi1; Xi1; FLT: 1 Xi3; Xi3;: Velocity of the object relative to the fluid
  • (1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (1); (2); (3); (1); (1); (1); (1); (1); (2); (1); (2); (2); (1); (1); (1); (1); (1); (2); (2); (2); (3); (3); (3); (3); (3); (3); (3); (3); (3); (3): (3) (3); (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (3) (4) ((4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4) (4
  • Xiv1; Xiv1; FLT: 0 Xiv3; Xiv3; A Xiv1; Xiv1; FLT: 1 Xiv3; Xiv3;: Cross- sectional area

Obliczanie tej wartości Drag Coefficient

Te drag coefficient (C is 1; C is 1; FLT: 0 is 3; Xi3; d is 1; FLT: 1 is 3; Xi3;) varies based on thee shape of thee object and flow conditions. It i s usually determination experimentally or portained from standard reference tables. For coorn shapes:

  • Sferesy: C Xi1; Xi1; FLT: 0 Xi3; Xi3; d Xi1; Xi1; FLT: 1 Xi3; Xi3; Xi3; Xi0.47
  • Cylindery: C, 1, 1, 0, 0, 3, 3, 3, 3, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8
  • Streamlined bodies: C Books 1; Bookman Old Style} Człekokształtne: C Booking 1; {C: $999966} {f: Bookman Old Style} Człekokształtne: {C: $999966} {f: Bookman Old Style} Człekokształtne: C Booking 1; {C: $999966} {f:

Etapy to Calculate Drag Force

Follow these steps to compute thee drag force:

  • Określić tę gęstość fluidu (∞).
  • Mierzy się rok identyfikacji tego welocity (v) of te obiekt relative te te fluid.
  • Find the cross- sectional area (A) of the object facing thee flow.
  • Identyfikator ten należy stosować w odniesieniu do współefektywności (C, 1; C, 1;, 1;, 1; FLT: 0, 3; D, 1; FLT: 1, 3;) for te object shape.
  • FLT: 0 XI3; FLT: 0 XI3; FL3; d XI1; FLT: 1 XI3; FLT: 1 XI3; FL3; FLT: 1 XI3; FL3; = ½ ▼ v ² C XI1; FLT: 2 XI3; FLT: 2 XI3; FLT: 3 XI3; FLT: 3 XI3; A.

Badanie Calculation

Pomocnik a submerged sfere with a diameter of 0.5 meters moves at 2 meters per second in water with a density of 1000 kg / m ³. The drag coefficient for a sfere is approximately 0.47. Calculate thee drag force.

First, find the cross- sectional area:

A = ∞ r ² = ∞ (0,25) ²

Then, appy the formula:

F = 1; F = 1; F = 1; FLT: 0 = 3; D = 1; FLT: 1 = 3; FLT: = ½ × 1000 × 2 ² × 0. 47 × 0. 196 = 92,4 N