test: add Strickler tests based on S. Bennis, Hydraulique et hydrologie book, exercise #6

refs #215

spec/pipe_flow/strickler.spec.ts

+// tslint:disable:no-console
+import { PressureLoss, SessionSettings } from "../../src/internal_modules";
+import { PL_Strickler, PL_StricklerParams } from "../../src/internal_modules";
+import { PressureLossParams } from "../../src/internal_modules";
+
+let oldMaxIter: number;
+
+describe("Loi de perte de charge Strickler : ", () => {
+
+    beforeAll(() => {
+        oldMaxIter = SessionSettings.maxIterations;
+        SessionSettings.maxIterations = 100;
+    });
+
+    afterAll(() => {
+        SessionSettings.maxIterations = oldMaxIter;
+    });
+
+    beforeEach(() => {
+        SessionSettings.precision = 1e-7; // précision
+    });
+
+    describe("Conduite d'égout, S. Bennis 'Hydraulique et hydrologie', exercice 6 :", () => {
+        it("à t=0", () => {
+            const plParams = new PressureLossParams(
+                0.2, // débit Q
+                0.61, // diamètre D
+                0.075, /// perte de charge J
+                100, // longueur du toyo Lg
+                0 // coef de perte de charge singulière Kloc
+            );
+
+            const stricklerParams = new PL_StricklerParams(
+                1 // coefficient de rugosité de Strickler Ks
+            );
+            const plStrickler = new PL_Strickler(stricklerParams);
+            const pl: PressureLoss = new PressureLoss(plParams, plStrickler);
+            pl.calculatedParam = stricklerParams.Ks;
+
+            const res = pl.CalcSerie();
+            expect(res.vCalc).toBeCloseTo(87.546, 3);
+        });
+
+        it("à t=30 ans", () => {
+            const plParams = new PressureLossParams(
+                0.2, // débit Q
+                0.61, // diamètre D
+                0.5, /// perte de charge J
+                100, // longueur du toyo Lg
+                0 // coef de perte de charge singulière Kloc
+            );
+
+            const stricklerParams = new PL_StricklerParams(
+                1 // coefficient de rugosité de Strickler Ks
+            );
+            const plStrickler = new PL_Strickler(stricklerParams);
+            const pl: PressureLoss = new PressureLoss(plParams, plStrickler);
+            pl.calculatedParam = stricklerParams.Ks;
+
+            const res = pl.CalcSerie();
+            expect(res.vCalc).toBeCloseTo(33.9064, 4);
+        });
+
+        it("tubage PVC", () => {
+            const plParams = new PressureLossParams(
+                0.2, // débit Q
+                0.59, // diamètre D
+                0.5, /// perte de charge J
+                100, // longueur du toyo Lg
+                0 // coef de perte de charge singulière Kloc
+            );
+
+            const stricklerParams = new PL_StricklerParams(
+                111.111 // coefficient de rugosité de Strickler Ks
+            );
+            const plStrickler = new PL_Strickler(stricklerParams);
+            const pl: PressureLoss = new PressureLoss(plParams, plStrickler);
+            pl.calculatedParam = plParams.J;
+
+            const res = pl.CalcSerie();
+            expect(res.vCalc).toBeCloseTo(0.05562, 5);
+        });
+    });
+});