Solucionario Hidraulica General Sotelo Capitulo 9 Tomo Ii May 2026
Para dominar los ejercicios de este capítulo, debes tener dominio total sobre tres herramientas matemáticas:
This curve is empirical, provided by the manufacturer, describing the head the pump can actually produce at specific flow rates. Sotelo typically presents this data in tabular form within the problems, expecting the engineer to interpolate or plot the values.
One of the central pedagogical contributions of Chapter 9 is the clear distinction and graphical superposition of two distinct curves. This is the "heart" of the solucionario (solution manual) methodology for this chapter.
El enunciado típico: "Diseñar un canal revestido para conducir $X$ m³/s con una pendiente $Y$ y un coeficiente de rugosidad $n$". solucionario hidraulica general sotelo capitulo 9 tomo ii
La dificultad: No basta con despejar una variable. El problema suele pedir determinar la profundidad ($y$) y el ancho de la plantilla ($b$).
The "Solucionario" approach dictates that the solution to a pumping problem is found where these two curves intersect. Sotelo stresses that a pump should never be selected based on nominal data alone; it must be selected based on the intersection of the system demand and pump capability.
Cambia un dato del problema resuelto en el solucionario. Por ejemplo, si el problema original usa Fr1 = 5, resuélvelo con Fr1 = 7.5. Compara cómo cambia y2 y la disipación. Esto te prepara para el examen. Para dominar los ejercicios de este capítulo, debes
| Do | Don’t |
|--------|------------|
| Solve the problem first on your own, then check the final numeric result. | Copy the solucionario directly into your homework – professors know the source. |
| Use it to understand why a flow is subcritical or supercritical at a given section. | Assume the solucionario’s answer is always correct – verify with a second method or classmate. |
| Compare your iteration steps (e.g., finding y_n by trial) with the solucionario’s table. | Skip drawing the water surface profile – the solucionario won’t teach you that intuition. |
| Re-derive the algebraic formulas from the solucionario to build muscle memory. | Rely on it for non-numerical, conceptual exam questions (e.g., “What happens if slope increases?”). |
Towards the middle of the chapter, Sotelo introduces dimensionless parameters, specifically Specific Speed ($n_s$). This is crucial for classifying pumps:
The solucionario utilizes these concepts to solve problems regarding similarity. For example, if a pump impeller diameter is reduced or the rotational speed is changed, how do the flow ($Q$) and head ($H$) change? Sotelo applies the affinity laws: The solucionario utilizes these concepts to solve problems
$$ \fracQ_1Q_2 = \fracn_1n_2 \quad \textand \quad \fracH_1H_2 = \left( \fracn_1n_2 \right)^2 $$
These formulas allow engineers to predict the performance of a pump under varying operational conditions without needing new experimental data.
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