Praktyka Guidete tu Calculating Drag Force ob Przedmioty Submerged
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