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Delaigue Olivier authored3565d8b5
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HYCAR-Hydro / airGR
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import { ParamCalculability } from "../param/param-definition";
import { Result } from "../util/result";
import { Structure, StructureFlowMode, StructureFlowRegime } from "./structure";
import { LoiDebit } from "./structure_props";
import { TriangularStructureParams } from "./structure_triangular_weir_params";
import { Villemonte } from "./villemonte";
export { TriangularStructureParams };
/**
* Equation classique seuil triangulaire + Ennoiement Villemonte
*/
export class StructureTriangularWeir extends Structure {
constructor(prms: TriangularStructureParams, dbg: boolean = false) {
super(prms, dbg);
this._loiDebit = LoiDebit.TriangularWeirFree;
}
/**
* paramètres castés au bon type
*/
get prms(): TriangularStructureParams {
return this._prms as TriangularStructureParams;
}
/**
* Calcul analytique Q = f(Cd, L, h1, h2, W) seuil dénoyé
* @param sVarCalc Variable à calculer (doit être "Q")
*/
public CalcQ(): Result {
const data = this.getResultData();
let Q = this.prms.Cd.v * this.getTanFromDegrees(this.prms.alpha2.v)
* Math.pow(this.prms.h1.v, 2.5);
if (data.ENUM_StructureFlowRegime !== StructureFlowRegime.FREE) {
Q = Villemonte(this.prms.h1.v, this.prms.h2.v, 2.5) * Q;
}
return new Result(Q, this, data);
}
/**
* Calcul de l'aire d'écoulement sur le seuil
*/
public calcA(): number {
return Math.pow(Math.max(this.prms.h1.v, this.prms.h2.v), 2) * this.getTanFromDegrees(this.prms.alpha2.v);
}
protected getFlowRegime() {
if (this.prms.Z2.v <= this.prms.ZDV.v) {
return StructureFlowRegime.FREE;
} else {
// La réduction de débit s'applique dès que Z2 > ZDV (Villemonte, 1946)
if (this.prms.h2.v < 4 / 5 * this.prms.h1.v) {
// Yc = 4 / 5 * H1 (Jameson, 1925)
return StructureFlowRegime.PARTIAL;
}
return StructureFlowRegime.SUBMERGED;
}
}
protected getFlowMode() {
return StructureFlowMode.WEIR;
}
/**
* Compute Tangent with angle in degrees
* @param degrees Angle (degrees)
717273747576777879808182838485
*/
protected getTanFromDegrees(degrees: number) {
return Math.tan(degrees * Math.PI / 180);
}
/**
* paramétrage de la calculabilité des paramètres
*/
protected setParametersCalculability() {
super.setParametersCalculability();
this.prms.alpha2.calculability = ParamCalculability.DICHO;
this.prms.Cd.calculability = ParamCalculability.DICHO;
}
}