---
title: "Swirler"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SWIRLER"
  data_integrity_hash: "7986853e0a398ddef5918cc9af933d01"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:SWIRLER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/swirler.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/swirler"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 bar pressure drop across component, 15-45 m/s axial velocity, 400-800 K inlet temperature"
    unit: "degrees"
engineering_limits:
  max_safe_operating_point:
    value: 950
    unit: "°C"
    consequence: "Thermal fatigue from cyclic heating (combustion chamber 1800K to swirler 800K gradient), creep deformation at sustained temperatures above 900°C, boundary layer separation at Reynolds number &lt;5000"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Fuel nozzle coking deposits (carbon buildup &gt;0.5mm thickness)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated air-blast cleaning system with 2.0 bar purge cycles every 50 operating hours"
  - node_2:
      trigger: "Thermal barrier coating spallation (&gt;10% surface area loss)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Plasma-sprayed yttria-stabilized zirconia coating with 300μm thickness and bond coat oxidation barrier"
bom_nodes:
  swirl-vane:
    type: "component"
    urn: "URN:CNFX:ME:SWIRL_VANE"
    interface_type: "physical-logic-coupled"
  hubcenterbody:
    type: "part"
    urn: "URN:CNFX:ME:HUBCENTERBODY"
    interface_type: "physical-logic-coupled"
  outer-casingshroud:
    type: "component"
    urn: "URN:CNFX:ME:OUTER_CASINGSHROUD"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/swirler.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "dbe1d4c09744417895fac3989183f5120fbd9115ec6e84f2794bce143f8a9aa4"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Swirler

## 1. Technical Definition
A component within a gas turbine combustion chamber that imparts a swirling motion to the incoming air or air-fuel mixture.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 bar pressure drop across component, 15-45 m/s axial velocity, 400-800 K inlet temperature**. Failure boundary: **Structural failure at 950°C metal temperature (Ni-based superalloy limit), aerodynamic instability at swirl number &gt;1.2, pressure drop exceeding 4.0 bar**, Mechanism: **Thermal fatigue from cyclic heating (combustion chamber 1800K to swirler 800K gradient), creep deformation at sustained temperatures above 900°C, boundary layer separation at Reynolds number &lt;5000**.

### 2.1 Analytical Physics Model
Governed by the **Darcy-Weisbach Pressure Drop**:

> **Primary Equation**: $\Delta P = f \cdot \frac{L}{D} \cdot \frac{\rho v^2}{2}$  
> **Engineering Impact**: Critical for sizing CIP (Clean-In-Place) pump heads.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| f | Friction Factor | Engineering Constant |
| L | Pipe Length | Engineering Constant |
| v | Velocity | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Fuel nozzle coking deposits (carbon buildup &gt;0.5mm thickness) | 8 | Swirl number reduction from 0.8 to &lt;0.4, causing flame instability and combustion dynamics &gt;200Pa RMS | Integrated air-blast cleaning system with 2.0 bar purge cycles every 50 operating hours |
| Thermal barrier coating spallation (&gt;10% surface area loss) | 8 | Metal temperature increase from 800K to 950K, leading to creep deformation &gt;1.0mm radial displacement | Plasma-sprayed yttria-stabilized zirconia coating with 300μm thickness and bond coat oxidation barrier |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | degrees | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Hub/Centerbody](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hubcenterbody.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Coordinate Measuring Machine**, **Industrial Furnace**  
**Downstream Applications**: Gas Turbine Engines, Power Generation Turbines, Aircraft Jet Engines  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What is the primary function of a swirler in gas turbine engines?
**A**: The swirler creates a controlled swirling motion in the incoming air or air-fuel mixture within the combustion chamber, which enhances mixing, stabilizes the flame, and improves combustion efficiency and temperature distribution.

### Q: Why are superalloys like Inconel used for swirlers?
**A**: Nickel-based superalloys (e.g., Inconel) and cobalt-based superalloys are used because they maintain strength and resist oxidation, creep, and thermal fatigue at the extreme temperatures (often exceeding 1000°C) inside gas turbine combustion chambers.

### Q: What are the main components of a swirler assembly?
**A**: A typical swirler assembly consists of three key parts: the hub or centerbody, the outer casing or shroud, and the swirl vanes. These work together to direct and impart the swirling motion to the airflow.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Swirler](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/swirler)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SWIRLER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2a28f413
