online_tractive_force
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Page 1
 Input (page 2)
ONLINE TRACTIVE FORCE METHOD
Philosophy

Description

Example

Reference

Disclaimer

[070530]

Page 1:   This page (index).

Page 2:   Input data and tractive force coefficient on the sides Cs and tractive force ratio K.
Page 3:   Permissible unit tractive force on level ground τL and on the sides τs.
Page 4:   Aspect ratio b/yn and normal depth yn.
Page 5:   Tractive force coefficient on the bottom Cb and acting unit tractive force on level ground TL.

    ♦ Page 6:   (a) TL ≤ τL:   Results for side control; or
    ♦ Page 7:   (b) TL > τL:   Results for bottom control.

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online_tractive_force
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Page 2
TRACTIVE FORCE RATIO

    (SI units) [U.S. units]

1a. Discharge Q (m3/s) [ft3/s]:      

1b. Side slope z (m/m) [ft/ft]:      

1c. Manning's n:      

1d. Bottom slope So (m/m) [ft/ft]:      

2a. Sides particle size d25 (mm) [in]:      

2b. Sides particle shape:    

3a. Bottom particle size d50 (mm):      

3b. Fine sediment in the water:    

4. Channel sinuosity:    

Please enter input data [on left] and press 'Calculate' below.

⇐⇐⇐

♦ Input data types 1 and 2 [channel hydraulic and sides material characteristics] are always required.

♦ Input data type 3 is required only if the material of the bottom is different from the material of the sides (See Description). If input data type 3a is left blank, the program will assume that the material of the bottom is the same as that of the sides [input data type 2].

♦ Input data type 4 is optional [Default is None].


            

 Your request was processed at  12:37:17 am on January 7th, 2009   [ 090107  00:37:17 ].

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online_tractive_force
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Page 3
 Input (page 2)
PERMISSIBLE UNIT TRACTIVE FORCE

    (SI units) [U.S. units]

1a. Discharge Q (m3/s) [ft3/s]:      

1b. Side slope z (m/m) [ft/ft]:      

1c. Manning's n:      

1d. Bottom slope So (m/m) [ft/ft]:      

2a. Sides particle size d25 (mm) [in]:      

2b. Sides particle shape:    

3a. Bottom particle size d50 (mm):      

3b. Fine sediment in the water:    

4. Channel sinuosity:    

Please enter input data in Page 2.

 Your request was processed at  12:37:17 am on January 7th, 2009   [ 090107  00:37:17 ].

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online_tractive_force
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Page 4
 Input (page 2)
NORMAL DEPTH CALCULATION

    (SI units) [U.S. units]

1a. Discharge Q (m3/s) [ft3/s]:      

1b. Side slope z (m/m) [ft/ft]:      

1c. Manning's n:      

1d. Bottom slope So (m/m) [ft/ft]:      

2a. Sides particle size d25 (mm) [in]:      

2b. Sides particle shape:    

3a. Bottom particle size d50 (mm):      

3b. Fine sediment in the water:    

4. Channel sinuosity:    

Please enter input data in Page 2.

 Your request was processed at  12:37:17 am on January 7th, 2009   [ 090107  00:37:17 ].

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online_tractive_force
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Page 5
 Input (page 2)
ACTING UNIT TRACTIVE FORCE

    (SI units) [U.S. units]

1a. Discharge Q (m3/s) [ft3/s]:      

1b. Side slope z (m/m) [ft/ft]:      

1c. Manning's n:      

1d. Bottom slope So (m/m) [ft/ft]:      

2a. Sides particle size d25 (mm) [in]:      

2b. Sides particle shape:    

3a. Bottom particle size d50 (mm):      

3b. Fine sediment in the water:    

4. Channel sinuosity:    

Please enter input data in Page 2.

 Your request was processed at  12:37:17 am on January 7th, 2009   [ 090107  00:37:17 ].

online_tractive_force:   Page 5

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online_tractive_force
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Page 6
 Input (page 2)
RESULTS FOR SIDE CONTROL

    (SI units) [U.S. units]

1a. Discharge Q (m3/s) [ft3/s]:      

1b. Side slope z (m/m) [ft/ft]:      

1c. Manning's n:      

1d. Bottom slope So (m/m) [ft/ft]:      

2a. Sides particle size d25 (mm) [in]:      

2b. Sides particle shape:    

3a. Bottom particle size d50 (mm):      

3b. Fine sediment in the water:    

4. Channel sinuosity:    

Please enter input data in Page 2.

 Your request was processed at  12:37:17 am on January 7th, 2009   [ 090107  00:37:17 ].

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online_tractive_force
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Page 7
 Input (page 2)
RESULTS FOR BOTTOM CONTROL

    (SI units) [U.S. units]

1a. Discharge Q (m3/s) [ft3/s]:      

1b. Side slope z (m/m) [ft/ft]:      
1c. Manning's n:      

1d. Bottom slope So (m/m) [ft/ft]:      

2a. Sides particle size d25 (mm) [in]:      

2b. Sides particle shape:    

3a. Bottom particle size d50 (mm):      

3b. Fine sediment in the water:    

4. Channel sinuosity:    

Please enter input data in Page 2.

 Your request was processed at  12:37:17 am on January 7th, 2009   [ 090107  00:37:17 ].

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online calc
normal depth critical depth discharge in culvert critical slope sequent depth HJ energy loss HJ
discharge sluice discharge weir discharge channel initial sequent HJ critical constriction efficiency HJ
M1 wsprofile M2 wsprofile M3 wsprofile S1 wsprofile S2 wsprofile S3 wsprofile
C1 wsprofile H2 wsprofile A2 wsprofile C3 wsprofile H3 wsprofile A3 wsprofile
tractive force ogee spillway Hazen-Williams
creager rational slope-area linear reservoir storage indication 1 storage indication 2
Muskingum Muskingum-Cunge time-area Clark UH cascade of linear reservoirs
Blaney-Criddle Penman Penman-Monteith Thornthwaite Priestley-Taylor
Gumbel Gumbel 2 Log Pearson Log Pearson 2 TR-55 graphical convolution
S-hydrograph curve number time of concentration
hyperbolic regression one-predictor linear one-predictor nonlinear two-predictor linear two-predictor nonlinear
USLE Dendy-Bolton Shields Duboys Colby reservoir design life