/**
 * Shared physical constants used across hydraulic turbine calculations
 */
export declare const g = 9.81;
export declare const gamma = 9810;
export declare const Cd = 0.62;
export declare const FRANCIS_CONSTANTS: {
    readonly r_brake_wheel: 0.15127;
    readonly r_rope: 0.00875;
    readonly h1: 0.275;
    readonly hi: 0.255;
    readonly B: 0.425;
    readonly hf: 0.365;
    readonly vertical_height_pressure_gauge_positive: 0.302;
    readonly vertical_height_pressure_gauge_negative: 0.245;
};
export declare const PELTON_CONSTANTS: {
    readonly r_brake_wheel: 0.15247;
    readonly r_rope: 0.00732;
    readonly h1: 0.2;
    readonly hi: 0.206;
    readonly B: 0.454;
    readonly vertical_height_pressure_gauge: 0.205;
};
export declare const KAPLAN_CONSTANTS: {
    readonly r_brake_wheel: 0.15247;
    readonly r_rope: 0.00732;
    readonly h0: 1;
    readonly hi: 0.25;
    readonly vertical_height_pressure_gauge: 0.25;
    readonly Cd: 0.97;
    readonly d1: 0.25;
    readonly d2: 0.125;
    readonly Sm: 13.6;
};
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